pARts And moRe CompACt 105 mm × 210 mm pICks · pARts And moRe CompACt pICks ... the carbide in our tips is a composite material made ... the careful brazing of the tungsten carbide

105 mm × 210 mm

RoAd And MineRAl tecHnologies

pARts And moRe CompACtpICks

www.wirtgen-group.com

105 mm × 210 mm

Contents

105 mm × 210 mm

2 I 3

AdvAntAges PAge 4

Original Wirtgen picks Page 4

Quality tools Page 6

FActs PAge 8

the components of a pick Page 8

the carbide tip Page 10

the brazing Page 12

the steel body Page 14

the wear plate Page 16

the clamping sleeve Page 18

the system Long Life (LL) Page 20

the system Extended run (Xr) Page 24

APPlicAtion PAge 26

Pick designation Page 26

Pick selection Page 27

Optimum wear Page 32

Milling depth and wear Page 36

Wear patterns (optimum) Page 38

Usage recommendations Page 42

System comparison Xr Page 48

Wear patterns (undesirable) Page 50

Contents

105 mm × 210 mm

AdvAntAges FActs ApplicAtion

good economy is well worthwhile

Economy as the relationship between the success achieved

and equipment used depends on many factors, particularly in

the case of complex construction machines. In this respect, the

cutting technology, and especially the pick as an outstanding

product of Wirtgen cutting, plays a central role.

Pick

oRIGInAL WIRtGen pICks

105 mm × 210 mm

4 I 5

Road milling machine Stabilizer

the formula “A low pick price results in good economy” does

not apply in this case.

A look at reality shows:

the list of influencing factors is long and varied. Starting with

the longer service life of the tools, to the minimization of stop-

page times by means of ease of use and on to the high level of

specialization for the many different applications. the con-

sumption of picks can be reduced significantly.

this brochure gives you the opportunity to get to know the full range of Wirtgen picks for road mill-ing machines, recyclers and stabilizers, enabling you to find the most economical option for your construction site operations in every situation.

oRIGInAL WIRtGen pICks

105 mm × 210 mm


competent partnership

When construction machine and tool manufacturers pool their

expertise, this has many benefits for you as the customer.

this close cooperation allows rapid reaction to the needs and

suggestions of customers. the design and production of all

types of cutting tools at BEtEK, perfectly matched to the dif-

ferent machine types of Wirtgen, ensure the maximum perfor-

mance capability of both the machine and pick in service.

QuALIty tooLs foR hIGh-peRfoRmAnCe mILLInG mAChInes

105 mm × 210 mm

6 I 7

this close cooperation shows:

Due to their individual design, picks are not classical bought-in

parts. Only in combination with the corresponding, highly spe-

cialized Wirtgen machines can this regularly give the optimum

milling result with maximum productivity.

summary: the combination of both these areas of expertise forms the basis for the best pos-sible service and greatest economy of your machines in daily use.

QuALIty tooLs foR hIGh-peRfoRmAnCe mILLInG mAChInes

105 mm × 210 mm


1

2

3

4

5

the Components of A pICk

105 mm × 210 mm

8 I 9

the Components of A pICk

Picks for road milling machines, recyclers and stabilizers

usually consist of five components:

1 Carbide tip2 Brazing3 Steel body4 Wear plate5 Clamping sleeve

the design varies from pick to pick, since they are designed for

different application areas, although the components and their

function are always identical.

Road milling pick W7 E H R

Stabilizing pick W1-17 / 22 R

105 mm × 210 mm


the CARbIde tIp – tunGsten CARbIde And CobALt WIth A peRfeCt bond

the carbide in our tips is a composite material made from

tungsten carbide and cobalt. While the tungsten carbide pro-

vides extreme hardness and resistance to wear, the compara-

tively “soft” cobalt bonds the tungsten carbide particles to

ensure maximum breaking strength under even the greatest

stresses.

1 Carbide under the microscope

2 Cobalt is deformed and creates a bond between the tungsten carbide particles, with a propor-tion by weight of approx. 6%

3 Tungsten carbide is very hard, and provides the wear resist-ance, with a proportion by weight of approx. 94%

1

105 mm × 210 mm

10 I 11

the CARbIde tIp – tunGsten CARbIde And CobALt WIth A peRfeCt bond

2 3

the balanced mixture of different particle sizes of the tungsten

carbide largely determines the wear of the tips. the fine parti-

cles ensure high wear resistance, while the coarse particles

provide the necessary breaking strength and temperature

resistance. the incorrect mixing ratio of coarse and fine parti-

cles causes increased wear in the high-temperature cutting

process, which results in premature failure of the tool.

Stringent quality controls at BEtEK ensure the consistent and

correct mixing ratio.

summary: the quality of the carbide determines the service life of the pick, and consequently also the ma-chine availability, its milling performance and the quality of your site operations.

105 mm × 210 mm


the bRAzInG – ReLIAbLe hoLd of the CARbIde tIp on the steeL body

the carbide tips are brazed firmly to the steel body. Since the

carbide in the tip and the steel in the steel body expand at

different rates as soon as the enormously high temperatures

generated in the milling process act on the components, we

use a brazing process developed in-house, which under the

effect of heat ultimately determines the hardness of the steel

body.

this is confirmed by numerous stress tests: Even under enor-

mous pick stresses, no breakage occurs. the carbide tip and

steel body hold firmly together.

The brazing

summary: the careful brazing of the tungsten carbide tip and the steel body ensures the firm bond of the materials.

105 mm × 210 mm

12 I 13

the bRAzInG – ReLIAbLe hoLd of the CARbIde tIp on the steeL body

105 mm × 210 mm


the pick head must withstand enormous shear forces and

impact stresses. At the same time, the pick must sit firmly and

unbreakably in the toolholder throughout its complete service

life. Wirtgen picks have a steel body which perfectly combines

the two properties of wear resistance and breaking strength.

Different hardness levels for the pick head and shaft are pro-

duced in a special operation: While the tough pick shaft ab-

sorbs the forces occurring in the area of the toolholder, the pick

head undergoes extra hardening, making it particularly wear-

resistant in direct contact with the milling material.

Put to the test: A 300 kg weight hits the pick from a height of 1.5 m

the steeL body – hARd At the top And touGh At the bottom

105 mm × 210 mm

14 I 15

summary: the relationship of hardness to toughness of the pick head and shaft largely determines the service life and usability of the pick.

the steeL body – hARd At the top And touGh At the bottom

105 mm × 210 mm


the WeAR pLAte – WeAR pRoteCtIon And InstALLAtIon AId

Wear protection

the design of the pick plays a decisive role for the wear char-

acteristics of the toolholder. Wirtgen picks are therefore de-

signed with a wear plate exactly matched to the toolholder,

which completely covers the upper part of the toolholder (the

plate outer diameter is 45 mm), and therefore absorbs a large

part of the wear stress.

105 mm × 210 mm

16 I 17

the WeAR pLAte – WeAR pRoteCtIon And InstALLAtIon AId

the plate is made of high-quality tempered spring steel, 4 mm

thick, and is conically shaped for chamfering to the shaft. the

chamfer fits accurately into the holder guide, and ensures that

the pick is continually re-centred in the toolholder.

the installation aid

In the delivery condition, the clamping sleeve of the pick is

pre-tensioned by the wear plate. the pick can therefore be

fitted easily to the upper part of the toolholder, requiring only a

few operations to install the pick ready for use.

Effective protection: The wear plate completely covers the toolholder contact surface

summary: the wear plate ensures even wear of the toolholder contact surface and reduced lengthwise wear of the toolholders, and also enables easy and quick installation of the pick.

105 mm × 210 mm


1

thanks to its exact roundness, the cylindrical R-sleeve

ensures optimum pick rotation characteristics.

In contrast to conical sleeves, cylindrical sleeves do not enlarge

the toolholder bore, and reliably prevent asymmetrical wear.

the twin-Stop function with an upper and lower stop enables

the clearly defined lengthwise play of the pick under the chang-

ing stresses during the cutting process. this dramatically re-

duces the risk of damage to the sleeves and/or the number of

pick breakages.

the lower gap width (see Figure 1) results in a larger contact

area between the toolholder bore and sleeve jacket. the com-

paratively high hardness of the clamping sleeve ensures a high

1 The Twin-Stop clamp-ing sleeve with improved rotation characteristics

2 Conventional clamping sleeve with an axial stop in the unprotected area

3 Twin-Stop stops in the protected area for reduced wear

clamping force, which counteracts premature failure in even the

most demanding applications. A special protective film pro-

tects the sleeve against corrosion and therefore enables the

easy dismantling of the pick.

the CLAmpInG sLeeVe – stRonG hoLd And QuICk RepLACement

105 mm × 210 mm

18 I 19

2 3

summary: the holding force is great enough to guarantee a reliable milling process in every situation, and simultaneously low enough to allow uncompli-cated and quick pick replacement.

the CLAmpInG sLeeVe – stRonG hoLd And QuICk RepLACement

105 mm × 210 mm


the system LonG LIfe foR pICks WIth 20 mm shAft dIAmeteR

1

105 mm × 210 mm

20 I 2120 I 21


the pick generation LL (Long Life) with 20 mm shaft diameter

has been specially developed for wear-intensive applications,

and offers significant advantages.

Since practical experience has shown that the usual wear

plate thickness of 4 mm is not enough for some applications in

the field of road milling, the wear plate thickness of the LL

series has been increased to 5 mm (and up to 7 mm at the

outer edge). this makes it significantly more resistant and also

suitable for use under extreme conditions.

1 W7 E H LL (Part No.: 2152111)

2 LL pick for extreme applica-tions in the field of road milling

2

105 mm × 210 mm



In comparison to conventional picks with wear plate, LL picks

differ by means of a labyrinth, formed by the pick head, wear

plate and clamping sleeve (see comparison on the following

page).

the penetration of fine particles of milled material into the

toolholder bore and the cavity between the clamping sleeve

and pick shaft usually leads to impairment of the rotation char-

acteristics. the clamping sleeve wear is also greatly acceler-

ated, with resulting reduced service life of the pick.

the labyrinth seal ensures reduced penetration of fine

particles. the wall thickness of the clamping sleeve is also

increased to 1.25 mm. the overall effect is a significant im-

provement in the service life of the cutting tools.

summary: the LL pick generation for road milling ma-chines guarantees a significant extension of the service life. In extreme application cases, this greatly improves the efficiency of the cutting tools.

105 mm × 210 mm

22 I 23


Previous version (R) Current version (LL)

105 mm × 210 mm


the system extended Run foR pICks WIth 22 mm shAft dIAmeteR

the pick generation XR has been optimized with regard to

the wear mechanisms occurring with stabilizer and recy-

cler picks with 22 mm shaft diameter, because these place

quite different requirements on the individual components.

Experience has shown that in this segment in particular, the

pick head is also subject to wear, in addition to the carbide tip.

Previous standard tools obtain their material characteristics

such as hardness and toughness due to the brazing process.

103 mm × 210 mm

24 I 25

the system extended Run foR pICks WIth 22 mm shAft dIAmeteR

By decoupling of the cone, a range of previously unachievable

combinations of characteristics can be realized.

the core of the pick and carrier of the carbide is particularly

tough, and therefore less prone to breakage, while the

jacket, i.e. the wear cone, is particularly hard and resistant.

the wear cone mounted on the pick head is particularly solid

and massive, in order to guarantee reduced and even wear of

all components (carbide tip, wear cone etc.).

In applications involving extreme ground conditions, tool

breakage sometimes occurs due to rocks or reinforcement.

Since in the Xr series (with 22 mm shaft diameter) the cone is

made of significantly more wear-resistant material than the pick

head of conventional picks, the toolholder remains protected

longer, even following complete loss of the carbide tip.

if a pick replacement can no longer be pushed on it can,

like all picks of the R series, be easily fitted by means of

the pre-tensioned clamping sleeve and fitted with little

effort.

95 mm × 210 mm


pICk desIGnAtIon

Designation Meaning of the abbreviation Description

W Wirtgen Pick

WMWirtgen Mini-pick for small milling machines

Special pick for small milling machines (clamp-ing sleeve or shaft design without wear plate)

Designations for cap-shaped carbide tips

W4 Basic diameter 16 mm

W5 EW5 Extended

Basic diameter 17.5 mm (only available as 16 mm extended version (E))

W6 Basic diameter 19 mm (Length: 17.5 mm)

W6 EW6 Extended

Basic diameter 19 mm (extended version: 19.6 mm)

W7 E

W7 Extended

Basic diameter 20.5 mm (only available as 20.5 mm extended version (E))

W8 Basic diameter 22 mm (Length: 20 mm)

W8 EW8 Extended

Basic diameter 22 mm (extended version: 23 mm)

W6 SGW6 Stony Ground

flat tip with basic diameter of 19 mm (ground stabilization)

W6 AOC

W6 Asphalt Over Concrete

with webs, basic diameter 19 mm (Special application: Concrete milling; soft asphalt layer and hard substrate)

Designations for cylindrical carbide tips

W1 - Additional designation for cylindrical tips for picks for road milling, recycler and stabilization work

95 mm × 210 mm

the selection of the right pick is decisive for your suc-

cess. Due to the many different application areas in the field

of road construction and stabilization, the following graphic

provides you with an overview of the variety of Wirtgen

picks – a range designed because of the host of possible

applications with Wirtgen machines.

the tabular overview (pages 26 and 31) provides you with a

detailed overview of the different pick designations, including

all available and all possible dimensions and descriptions.

01 the carbide tips

a) Cap-shaped carbide tips are available in seven different sizes (W4, W5 E, W6, W6 E, W7 E, W8, W8 E), which vary in their basic diameter, and with the designation E also in length.

b) the cap-shaped carbide tip W6 SG has the same diameter as the W6 tip. the greatly flattened tip has been specially de-signed for stony ground in the application area of ground stabilization.

c) the cap-shaped carbide tip W6 AOC has the same diameter as the W6 tip. the tip is equipped with webs, and is used in special applications (soft top layer and hard substrate).

d) Cylindrical carbide tips are available in five different sizes (- 10, - 13, - 15, - 17, - 19). the number after the dash indi-cates the diameter of the tips in millimetres.

02 the pick heads

a) Pick heads without an extraction groove are designated by the letter H (only for Ø 20 mm shaft). this designation letter is not shown for picks with a 22 mm shaft, since they have no extraction groove.

b) Pick heads with an extraction groove can be identified by the absence of the designation letter H (only for Ø 20 mm shaft).

c) the voluminous pick heads with the designation letter S constitute the group of stabilization and recycling picks (only for Ø 20 mm shaft).

the RIGht pICk seLeCtIon

103 mm × 210 mm


01 Carbide tips

a)

a) b)

a) b)

a)

b)

b) c)

02 Pick heads

03 Shaft design

04 Wear elements

d)

d) Extended pick heads with embedded, cylindrical carbide tip for optimum concrete milling characteristics (Ø 20 mm shaft).

e) Particularly large pick head with cylindrical carbide tip for stabi-lization of stony ground and recycling applications (Ø 22 mm shaft).

f) the two-in-one pick head has a wear cone, instead of a con-ventional wear plate, which simultaneously forms the holder protection and the pick head (Ø 22 mm shaft).


103 mm × 210 mm

c) d)

c)

e)

d) e)

e) f)

c) d)

g) h)

g) Large and robust pick head with cap-shaped carbide tip for ground stabilization and cold recycling under extreme condi-tions (Ø 25 mm shaft).

h) Large pick head with cylindrical carbide tip for ground stabiliza-tion and cold recycling under extreme conditions (Ø 25 mm shaft).


95 mm × 210 mm

27 I 30

03 the shaft design

a) Pick shafts (Ø 20 mm) with twin-Stop clamping sleeve and wear plate carry the designation r.

b) Pick shafts for road milling machines (Ø 20 mm) with in-creased wall thickness of the twin-Stop clamping sleeve and a thicker wear plate carry the designation LL.

c) Pick shafts (Ø 22 mm) with twin-Stop clamping sleeve and 45 mm wear plate with additionally reinforced edge carry the designation r.

d) Pick shafts (Ø 22 mm) with twin-Stop clamping sleeve and wear cone carry the designation Xr.

e) Pick shafts (Ø 25 mm) with twin-Stop clamping sleeve and 60 mm wear plate with additionally reinforced edge carry the designation r.

04 the wear elements for the holder protection

a) Conventional wear plates with a material thickness of 4 mm for picks with a 20 mm shaft diameter carry the designa-tion r.

b) Wear plates (outer Ø 45 mm) with additionally reinforced edge for picks with a 20 mm shaft diameter carry the designa-tion LL.

c) Wear plates (outer Ø 45 mm) with additionally reinforced edge for picks with a 22 mm shaft diameter carry the designa-tion r.

d) Wear cone of the pick series Xr with a 22 mm shaft diameter.

e) Large wear plate with an outer diameter of 60 mm and addi-tionally reinforced edge for picks with a 25 mm shaft diameter carry the designation r.


95 mm × 210 mm

26 I 31

Designation Meaning of the abbreviation Description

Designations for cylindrical carbide tips

- The following number specifies the diameter of the cylindrical tips

- 10 Diameter 10 mm

- 13 Diameter 13 mm

- 15 Diameter 15 mm

- 17 Diameter 17 mm

- 19 Diameter 19 mm

Designations for additional features of the pick

/ The following number specifies the shaft diameter of the pick

/ 13 Shaft diameter 13 mm



EExtended

For picks with extended carbide tip

H For picks without extraction groove (only for picks with a 20 mm shaft diameter)

RRotary

For picks with clamping sleeve with Twin-Stop function (Rotary system)

LL

Long Life

For picks with clamping sleeve with Twin-Stop function and reinforced wear plate (picks with a 20 mm shaft diameter)

/ 22 XR

Extended Run

For picks with clamping sleeve with Twin-Stop function and wear cone (only for picks with a 22 mm shaft diameter)

S

Stabilizing

For picks with voluminous pick head for stabilization and recycling (only for picks with a 20 mm shaft diameter)

103 mm × 210 mm


the optImum WeAR of the pICk

the correct assessment of the wear to Wirtgen picks is an

essential requirement for smooth and efficient project handling.

replacing a pick at the right time guarantees successful work-

ing, and ultimately also reduces operating costs significantly.

Many influencing factors must be taken into account when

assessing the condition of picks: From the milling material to

the weather, the machine performance, the machine advance

speed and on to proper maintenance. Wear patterns and ob-

servation of the maximum wear lengths help to avoid missing

the correct replacement time, and prevent typical errors in

applications.

Pick W4 e R W5 e R W5 e H R W6 R W6 H R W6 e R W6 e H R W6 s R

Max. wear index for pick replacement

9.1 8.6 8.8 9.4 9.4 11.6 11.6 9.4

Length new 88 88 88 88 88 88 88 88

Length optimum wear 78.90 79.40 79.40 78.60 78.60 76.40 76.40 78.60

105 mm × 210 mm

32 I 33

Pick profi le gauge (Part No.: 193940)


Pick W4 e R W5 e R W5 e H R W6 R W6 H R W6 e R W6 e H R W6 s R


9.1 8.6 8.8 9.4 9.4 11.6 11.6 9.4

Length new 88 88 88 88 88 88 88 88

Length optimum wear 78.90 79.40 79.40 78.60 78.60 76.40 76.40 78.60

105 mm × 210 mm



Pick W6 sg R W6 Aoc R W7 e R W7 e H R W8 e H R W1-10 R W1-13 R W1-15 R W6 / 22 XR


1.5 9.4 12 12 13.6 18.5 17.3 15.8 9.4

Length new 80 88 88 88 88 88 88 88 92

Length optimum wear

78.50 78.60 76.00 76.00 74.40 69.50 70.70 72.20 82.60

PickW6 sg /22 XR

W6 Aoc /22 XR

W8 / 22 XR

W1-13 /22 R

W1-17 /22 R

W6 sg /25 R

W8 /25 R

W1-15 /25 R

W1-19 /25 R


1.5 9.4 11 18.5 18.3 1.5 11.2 16 17

Length new 84 92 92 92 92 113 113 113 113

Length optimum wear

82.50 82.60 81.00 73.50 73.70 111.50 101.80 97.00 96.00

105 mm × 210 mm

34 I 35


Pick W6 sg R W6 Aoc R W7 e R W7 e H R W8 e H R W1-10 R W1-13 R W1-15 R W6 / 22 XR


1.5 9.4 12 12 13.6 18.5 17.3 15.8 9.4

Length new 80 88 88 88 88 88 88 88 92

Length optimum wear

78.50 78.60 76.00 76.00 74.40 69.50 70.70 72.20 82.60

PickW6 sg /22 XR

W6 Aoc /22 XR

W8 / 22 XR

W1-13 /22 R

W1-17 /22 R

W6 sg /25 R

W8 /25 R

W1-15 /25 R

W1-19 /25 R


1.5 9.4 11 18.5 18.3 1.5 11.2 16 17

Length new 84 92 92 92 92 113 113 113 113

Length optimum wear

82.50 82.60 81.00 73.50 73.70 111.50 101.80 97.00 96.00

105 mm × 210 mm


mILLInG depth And ResuLtInG WeAR to pICks

in addition to the material in question, the most important

influencing factors for the milling performance are the

milling depth and the machine advance speed.

105 mm × 210 mm

36 I 3736 I 37

mILLInG depth And ResuLtInG WeAR to pICks

summary and practical tip: In some applications, the required milling depth is greater than 200 mm; in this case, it may be well worthwhile to remove the layers in several operations (cuts), since the advance per cut is increased and the wear to the picks per cubic metre can be reduced.

A Travel of the pick per cut in mmB Milling depth in mmC Theoretical milling volume in m³/h

Travel of the pick per cut in mm Theoretical milling volume (solid material) in m³/h Area of maximum milling volume performance

A major but often overlooked detail: At different milling depths,

the cutting profile of the pick, and therefore the chip size of the

milled material differ significantly.

this has a direct effect on the milling performance and the

wear to picks and toolholders. Wirtgen large milling machines

produce the maximum milling performance and lowest wear

costs at a milling depth of 75 mm to 150 mm.

it can therefore be said in summary that the maximum

economy can be achieved at these milling depths.

105 mm × 210 mm


the optImum WeAR to the pICk – WeAR pAtteRns

Picks with a cap-shaped carbide tip

this shows an example of an ideally worn pick. this can be

seen from the carbide tip worn to the maximum and the even

radial wear to the pick head.

103 mm × 210 mm



and chamfered wear plate

this result is almost ideal, since here too the pick shows radial

wear, as in the previous example. In the further milling process,

the operator should keep an eye on the condition of the already

very chamfered wear plate, because if it becomes too severely

worn, it no longer protects the toolholder properly against wear

to the contact surface.

95 mm × 210 mm


Picks with a cylindrical carbide tip

the figure shows an optimally worn pick with optimum rota-

tion, which is completely worn over its whole length, and

must therefore be replaced.

95 mm × 210 mm

38 I 4138 I 41



Good general condition of the pick with the exception of the

wear plate. this is too severely worn in terms of its diameter.

the steel body (with tip) however is only one-third worn. the

pick indicates optimum rotation characteristics.

95 mm × 210 mm

usAGe ReCommendAtIon foR pICksWIRtGen RoAd mILLInG mAChInes

* Version with fine milling drums and micro fine milling drums with toolholder system HT4 and HT04

Machine typeUsed in

soft asphalt medium-hard asphalt hard asphalt Concrete

SF300 C, W 350, W 350 E, W 35, W 35 DC, SF 500 C-C/3-C/4, W 500, W 50, W 50 DC*

WM4 / 13 Part No.: 182598

WM1 / 13 Part No.: 193701

SF 300 C

W4 E r Part No.: 2088082

W1-10 r Part No.: 2088081

W 350, W 350 E

W 35, W 35 DC

SF 500 C-C/3-C/4

W 500

W 50, W 50 DC

W5 E r Part No.: 2088085

W5 E H r Part No.: 2088095

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W1-13 r Part No.: 2088090

500 DC

SF 1000 C / CBA

W 600 DC / W 1000 L

W 1000

W 60 / W 100

W 1000 F, W 1200 F, W 1300 F

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W1-13 r Part No.: 2088090

W 100 F, W 120 F, W 130 F

1300 - 1500 DC

W 150

1900 - 2000 DC

W 1500

W 1900

W 200

W 2000

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W7 E H r Part No.: 2064871

W7 E H LL Part No.: 2152111

W8 E H r Part No.: 2088104

2100 DC

W1-15 r Part No.: 2088093

W 210

W 2100

W 2200

95 mm × 210 mm



Machine typeUsed in



WM4 / 13 Part No.: 182598

WM1 / 13 Part No.: 193701

SF 300 C

W4 E r Part No.: 2088082

W1-10 r Part No.: 2088081

W 350, W 350 E

W 35, W 35 DC

SF 500 C-C/3-C/4

W 500

W 50, W 50 DC

W5 E r Part No.: 2088085

W5 E H r Part No.: 2088095

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W1-13 r Part No.: 2088090

500 DC

SF 1000 C / CBA

W 600 DC / W 1000 L

W 1000

W 60 / W 100

W 1000 F, W 1200 F, W 1300 F

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W1-13 r Part No.: 2088090

W 100 F, W 120 F, W 130 F

1300 - 1500 DC

W 150

1900 - 2000 DC

W 1500

W 1900

W 200

W 2000

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W7 E H r Part No.: 2064871


W8 E H r Part No.: 2088104

2100 DC

W1-15 r Part No.: 2088093

W 210

W 2100

W 2200

103 mm × 210 mm



Machine typeUsed in



WM4 / 13 Part No.: 182598

WM1 / 13 Part No.: 193701

SF 300 C

W4 E r Part No.: 2088082

W1-10 r Part No.: 2088081

W 350, W 350 E

W 35, W 35 DC

SF 500 C-C/3-C/4

W 500

W 50, W 50 DC

W5 E r Part No.: 2088085

W5 E H r Part No.: 2088095

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W1-13 r Part No.: 2088090

500 DC

SF 1000 C / CBA

W 600 DC / W 1000 L

W 1000

W 60 / W 100

W 1000 F, W 1200 F, W 1300 F

W6 E r Part No.: 2088087

W6 E H r Part No.: 2088103

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W1-13 r Part No.: 2088090

W 100 F, W 120 F, W 130 F

1300 - 1500 DC

W 150

1900 - 2000 DC

W 1500

W 1900

W 200

W 2000

W6 r Part No.: 2069413

W6 H r Part No.: 2069412

W7 E H r Part No.: 2064871


W8 E H r Part No.: 2088104

2100 DC

W1-15 r Part No.: 2088093

W 210

W 2100

W 2200

103 mm × 210 mm

usAGe ReCommendAtIon foR pICksWIRtGen CoLd ReCyCLeRs And soIL stAbILIzeRs

Machine type Shaft diameterUsed in

Soil stabilization Stabilization of stony soil Cold recycling

WS 2000WS 2500WS 220WS 250

20 mmW6 S r Part No.: 2088106

W6 SG r Part No.: 2088110

22 mmW6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W1-17 / 22 r Part No.: 2088112

25 mmW8 / 25 r Part No.: 2143236

W1-15 / 25 r Part No.: 2143497

W6 SG / 25 r Part No.: 2143486

WR 2000WR 2400RACO 350WR 2500WR 2500 S

20 mmW6 S r Part No.: 2088106


W6 S r Part No.: 2088106

22 mm

W6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W6 AOC / 22 Xr Part No.: 2143716

W8 / 22 Xr Part No.: 2143717

W1-17 / 22 r Part No.: 2088112

W8 / 22 Xr Part No.: 2143717

25 mmW8 / 25 r Part No.: 2143236

W1-19 / 25 r Part No.: 2143499

W6 SG / 25 r Part No.: 2143486

W6 SG / 25 r Part No.: 2143486

W8 / 25 r Part No.: 2143236

95 mm × 210 mm




WS 2000WS 2500WS 220WS 250

20 mmW6 S r Part No.: 2088106


22 mmW6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W1-17 / 22 r Part No.: 2088112

25 mmW8 / 25 r Part No.: 2143236

W1-15 / 25 r Part No.: 2143497

W6 SG / 25 r Part No.: 2143486

WR 2000WR 2400RACO 350WR 2500WR 2500 S

20 mmW6 S r Part No.: 2088106


W6 S r Part No.: 2088106

22 mm

W6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W6 AOC / 22 Xr Part No.: 2143716

W8 / 22 Xr Part No.: 2143717

W1-17 / 22 r Part No.: 2088112

W8 / 22 Xr Part No.: 2143717

25 mmW8 / 25 r Part No.: 2143236

W1-19 / 25 r Part No.: 2143499

W6 SG / 25 r Part No.: 2143486

W6 SG / 25 r Part No.: 2143486

W8 / 25 r Part No.: 2143236

95 mm × 210 mm




WS 2000WS 2500WS 220WS 250

20 mmW6 S r Part No.: 2088106


22 mmW6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W1-17 / 22 r Part No.: 2088112

25 mmW8 / 25 r Part No.: 2143236

W1-15 / 25 r Part No.: 2143497

W6 SG / 25 r Part No.: 2143486

WR 2000WR 2400RACO 350WR 2500WR 2500 S

20 mmW6 S r Part No.: 2088106


W6 S r Part No.: 2088106

22 mm

W6 / 22 Xr Part No.: 2143715

W6 SG / 22 Xr Part No.: 2143714

W6 AOC / 22 Xr Part No.: 2143716

W8 / 22 Xr Part No.: 2143717

W1-17 / 22 r Part No.: 2088112

W8 / 22 Xr Part No.: 2143717

25 mmW8 / 25 r Part No.: 2143236

W1-19 / 25 r Part No.: 2143499

W6 SG / 25 r Part No.: 2143486

W6 SG / 25 r Part No.: 2143486

W8 / 25 r Part No.: 2143236

95 mm × 210 mm


system comparison with steel washing out

Condition:

the example shown (Figure 1) is one of the Xr pick genera-

tion with a 22 mm shaft diameter, which is equipped with an

extremely resistant wear cone.

system CompARIson of pICk GeneRAtIon xR WIth 22 mm shAft dIAmeteR

1

95 mm × 210 mm

In contrast to the earlier type, this pick is not prone to wash-

ing out under the carbide tip, as is indicated in Figure 2.

Better holder protection is also provided, since in this case

the wear cone can still protect the toolholder after extensive

use in comparison to standard picks.

system CompARIson of pICk GeneRAtIon xR WIth 22 mm shAft dIAmeteR

2

103 mm × 210 mm


undesIRed WeAR – WeAR pAtteRns

carbide breakage

Condition:

Figures 3 and 4 show a carbide tip after breakage due to

overload.

Cause:

there are basically two causes of a carbide breakage:

· Firstly, a mechanical overload may occur, if the surface being milled contains hard objects or materials which cannot be cut or broken, such as steel reinforcements, large rocks or drainage covers.

· Secondly, a thermal overload may be caused by excessive heat generated in the cutting process. this occurs in case of inadequate water supply in the cut of the pick.

3

105 mm × 210 mm

48 I 51


Solution:

· Damage due to mechanical overload is difficult to avoid, since steel reinforcements or large rocks in the substrate cannot be detected before the start of milling.

· In order to prevent a thermal overload, the sprinkler system (water pump, sprinkler bar and its components, such as nozzles and filters) should be checked. A further possibility is to reduce the advance speed of the machine, since this, together with the drum speed, deter-mines the cutting length of the picks. the longer the cutting length, the greater the friction created. this ultimately also leads to overheating of the pick.

4

105 mm × 210 mm



steel body washing out

Condition:

the steel body and wear plate are already severely worn in

comparison to the carbide tip. the pick demonstrates optimum

rotation.

Cause:

One possible cause for this form of wear is a high advance

speed with soft milling material. these conditions usually lead

to washing out at the pick head and reduced wear to the car-

bide tip.

Solution:

there are two means of minimizing this undesired wear:

· Use of a pick with a larger pick head

· reduction of the machine advance speed or machine speed

105 mm × 210 mm

52 I 53


excessive lengthwise wear

Condition:

the pick is completely worn. It has exceeded its maximum

service life, since there is no carbide left to be seen. the tool-

holder has probable been severely damaged at the contact

surface, since it is not protected either by a wear plate or a

pick head.

Cause:

the pick wore out long ago, and was detected much

too late.

Solution:

In order not to exceed the optimum replacement time, regular

checks should be carried out during occasional breaks in the

milling process.

105 mm × 210 mm



clamping sleeve wear

Condition:

the figure shows a conventional clamping sleeve, which due to

its design (without twin-Stop function) has become enlarged

by excessive use.

Cause:

this pick had been in use for a very long time. Even if this

cannot be seen from the pick head and the carbide tip, it can

always be identified from the wear to the wear plate and

clamping sleeve.

Solution:

For the general reduction of this risk, the so-called twin-Stop

function with the designation “r” (with exactly defined length-

wise play) was integrated into the system “rotary”.

105 mm × 210 mm

54 I 55


Bad rotation

Condition:

On this pick with a cylindrical carbide tip, severe wear can be

seen to one side of the pick head and the carbide tip. this is

most probably due to inadequate rotation characteristics.

Cause:

One reason for failure can be dirt in the toolholder bore. this

occurs in the event of inadequate water supply. A further cause

for the bad rotation characteristics can be a severely abraded

toolholder.

Solution:

First, the general condition of the water system should be

checked. It must also be ensured after dismantling the pick

that the toolholder bore is cleaned, and that the toolholder

contact surface is not worn on one side.

105 mm × 210 mm

Illus

trat

ions

and

tex

ts a

re n

on-b

ind

ing.

Sub

ject

to

tech

nica

l cha

nges

. Per

form

ance

dat

a d

epen

d o

n op

erat

iona

l con

diti

ons.

· N

o. W

G-4

0-30

/ 2

1610

74 E

N-0

2/10

© b

y W

irtge

n G

roup

201

0 ·

Prin

ted

in G

erm

any

WIrtGEN GMBHreinhard-Wirtgen-Straße 2 53578 Windhagen · Germany

Phone: +49 (0) 26 45/131-0 Fax: +49 (0) 26 45/131-397

E-mail: [email protected] www.wirtgen.de

JOSEPH VÖGELE AG Neckarauer Straße 168-228 68146 Mannheim · Germany

Phone: +49 (0) 621/8105-0 Fax: +49 (0) 621/8105-463

E-mail: [email protected] www.voegele.info

HAMM AG Hammstraße 1 95643 tirschenreuth · Germany

Phone: +49 (0) 9631/80-0 Fax: +49 (0) 9631/80-120

E-mail: [email protected] www.hamm.eu

KLEEMANN GMBHManfred-Wörner-Straße 160 73037 Göppingen · Germany

Phone: +49 (0) 7161/206-0 Fax: +49 (0) 7161/206-100

E-mail: [email protected] www.kleemann.info

Documents

pARts And moRe CompACt 105 mm × 210 mm pICks · pARts And moRe CompACt pICks ... the carbide in our tips is a composite material made ... the careful brazing of the tungsten carbide