Weldon Tool Holder, DIN ISO 7388-1, SK50
(formerly DIN 69871)
Quality pass
Chuck fine balanced G2.5 at 22.000 rpm
All functional surfaces fine machined
Taper tolerance AT3
Coolant supply form AD/AF
For clamping cutters with cylindrical shank and Weldon flat similar to DIN 1835-B and DIN 6535-HB.
Similar to DIN 6359-2 with steep taper SK50 form AD/AF DIN ISO 7388-1 (formerly DIN 69871).
Form AD/AF means: Central coolant supply and coolant channels on the collar which can be sealed again.
  • Also suitable for ANSI-CAT
Scope of Delivery
  • With clamping screw
HAIMER TIP
For a constant and acurate cooling of te cutting tool we recommend the optional cooling system Cool Jet.
Weldon Tool Holder, DIN ISO 7388-1, SK50
asset-114759-1248
Description Norm: Value: metric/ inch
Clamping diameter D1 0.787 inch
Length A A 5.118 inch
A-length version AL130
Diameter 2 D2 2.047 inch
Interface SK50
Mass (weight) D7 4,380 kg
Standard number of properties layout NSM DIN4000-89
Body diameter 1 A1 2.047 inch
Flange diameter A4 3.839 inch
Interference diameter A6 1.456 inch
Length body diameter 1 B1 4.366 inch
Protruding length B3 5.118 inch
Overall length B4 9.124 inch
Taper angle B51 30 °
Functional length B71 4.134 inch
item style code BLD 508013
Connection code type machine side C11 SKG
Connection code form type machine side C12 17
Connection thread nominal size machine side C13 M24
Connection code unit base machine side C14 9
Connection code style machine side C15 5
Connection size code machine side C2 0500
Connection code type workpiece side C51 ZYL
Connection code form type workpiece side C52 10
Connection code unit base workpiece side C54 1
Connection code style workpiece side C55 5
Connection size code workpiece side C6 0200
Connection diameter min C71 20
Clamping length max. / nominal length C81 2.366 inch
Balance grade D5 G2,5/22000
Rotation speed, max D6 22000
Hand E1 N
coolant entry style code H21 7
coolant exit style code H22 1
Standard number J1 DIN1835-B, DIN6535-HB
Company identification J3 HAI
interface code to workpiece side J4 ZYL02001015
interface code to machine side J6 SKG05001795
Weight WT 4,380 kg
Standard number of properties layout NSM DIN4000-89
Body diameter 1 BD1 2.047 inch
Flange diameter DF 3.839 inch
Interference diameter DCINTF 1.456 inch
Length body diameter 1 LBD1 4.366 inch
Protruding length LPR 5.118 inch
Overall length OAL 9.124 inch
Taper angle TA 30 °
Functional length LF 4.134 inch
Connection code type machine side CCTMS SKG
Connection code unit base workpiece side CCUWS 1
Connection code style workpiece side CCSWS 5
Connection size code workpiece side CZCWS 0200
Connection diameter min DCONN 20
Clamping length max. / nominal length LSCX 2.366 inch
Hand HAND N
coolant entry style code CNSC 7
coolant exit style code CXSC 1
Company identification COMPC HAI
Downloads
Register to get access to free downloads of CAD data (DXF and STP) on our product websites.
Weldon Tool Holder, DIN ISO 7388-1, SK50
(formerly DIN 69871)
Quality pass
Chuck fine balanced G2.5 at 22.000 rpm
All functional surfaces fine machined
Taper tolerance AT3
Coolant supply form AD/AF
For clamping cutters with cylindrical shank and Weldon flat similar to DIN 1835-B and DIN 6535-HB.
Similar to DIN 6359-2 with steep taper SK50 form AD/AF DIN ISO 7388-1 (formerly DIN 69871).
Form AD/AF means: Central coolant supply and coolant channels on the collar which can be sealed again.
  • Also suitable for ANSI-CAT
Scope of Delivery
  • With clamping screw
HAIMER TIP
For a constant and acurate cooling of te cutting tool we recommend the optional cooling system Cool Jet.
Weldon Tool Holder, DIN ISO 7388-1, SK50
asset-114759-1248
Description Norm: Value: metric/ inch
Clamping diameter D1 0.787 inch
Length A A 5.118 inch
A-length version AL130
Diameter 2 D2 2.047 inch
Interface SK50
Mass (weight) D7 4,380 kg
Standard number of properties layout NSM DIN4000-89
Body diameter 1 A1 2.047 inch
Flange diameter A4 3.839 inch
Interference diameter A6 1.456 inch
Length body diameter 1 B1 4.366 inch
Protruding length B3 5.118 inch
Overall length B4 9.124 inch
Taper angle B51 30 °
Functional length B71 4.134 inch
item style code BLD 508013
Connection code type machine side C11 SKG
Connection code form type machine side C12 17
Connection thread nominal size machine side C13 M24
Connection code unit base machine side C14 9
Connection code style machine side C15 5
Connection size code machine side C2 0500
Connection code type workpiece side C51 ZYL
Connection code form type workpiece side C52 10
Connection code unit base workpiece side C54 1
Connection code style workpiece side C55 5
Connection size code workpiece side C6 0200
Connection diameter min C71 20
Clamping length max. / nominal length C81 2.366 inch
Balance grade D5 G2,5/22000
Rotation speed, max D6 22000
Hand E1 N
coolant entry style code H21 7
coolant exit style code H22 1
Standard number J1 DIN1835-B, DIN6535-HB
Company identification J3 HAI
interface code to workpiece side J4 ZYL02001015
interface code to machine side J6 SKG05001795
Weight WT 4,380 kg
Standard number of properties layout NSM DIN4000-89
Body diameter 1 BD1 2.047 inch
Flange diameter DF 3.839 inch
Interference diameter DCINTF 1.456 inch
Length body diameter 1 LBD1 4.366 inch
Protruding length LPR 5.118 inch
Overall length OAL 9.124 inch
Taper angle TA 30 °
Functional length LF 4.134 inch
Connection code type machine side CCTMS SKG
Connection code unit base workpiece side CCUWS 1
Connection code style workpiece side CCSWS 5
Connection size code workpiece side CZCWS 0200
Connection diameter min DCONN 20
Clamping length max. / nominal length LSCX 2.366 inch
Hand HAND N
coolant entry style code CNSC 7
coolant exit style code CXSC 1
Company identification COMPC HAI
Downloads
Register to get access to free downloads of CAD data (DXF and STP) on our product websites.
All product variants
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Order No. A-length version Clamping diameter Interface Length A Downloads metric/ inch
50.300.06 short 0.236 inch SK50 2.48 inch
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50.300.08 short 0.315 inch SK50 2.48 inch
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50.300.10 short 0.394 inch SK50 2.48 inch
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50.300.10.2 short 0.394 inch SK50 2.48 inch
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50.300.12 short 0.472 inch SK50 2.48 inch
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50.300.12.2 short 0.472 inch SK50 2.48 inch
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50.300.14 short 0.551 inch SK50 2.48 inch
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50.300.16 short 0.63 inch SK50 2.48 inch
Download after registration
50.300.16.2 short 0.63 inch SK50 2.48 inch
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50.300.18 short 0.709 inch SK50 2.48 inch
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50.300.20 short 0.787 inch SK50 2.48 inch
Download after registration
50.300.20.2 short 0.787 inch SK50 2.48 inch
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50.300.25 short 0.984 inch SK50 3.15 inch
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50.300.32 short 1.26 inch SK50 3.937 inch
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50.300.40 short 1.575 inch SK50 3.937 inch
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50.301.06 long 0.236 inch SK50 3.937 inch
Download after registration
50.301.08 long 0.315 inch SK50 3.937 inch
Download after registration
50.301.10 long 0.394 inch SK50 3.937 inch
Download after registration
50.301.12 long 0.472 inch SK50 3.937 inch
Download after registration
50.301.14 long 0.551 inch SK50 3.937 inch
Download after registration
50.301.16 long 0.63 inch SK50 3.937 inch
Download after registration
50.301.18 long 0.709 inch SK50 3.937 inch
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50.301.20 long 0.787 inch SK50 3.937 inch
Download after registration
50.301.25 long 0.984 inch SK50 3.937 inch
Download after registration
50.304.06 AL130 0.236 inch SK50 5.118 inch
Download after registration
50.304.08 AL130 0.315 inch SK50 5.118 inch
Download after registration
50.304.10 AL130 0.394 inch SK50 5.118 inch
Download after registration
50.304.12 AL130 0.472 inch SK50 5.118 inch
Download after registration
50.304.14 AL130 0.551 inch SK50 5.118 inch
Download after registration
50.304.16 AL130 0.63 inch SK50 5.118 inch
Download after registration
50.304.18 AL130 0.709 inch SK50 5.118 inch
Download after registration
50.304.20 AL130 0.787 inch SK50 5.118 inch
Download after registration
50.304.25 AL130 0.984 inch SK50 5.118 inch
Download after registration
50.304.32 AL130 1.26 inch SK50 5.118 inch
Download after registration
50.304.40 AL130 1.575 inch SK50 5.118 inch
Download after registration
Haimer Care
Haimer Care
The quality at Haimer is not only by the product, but also by the accompanying services.

Scope of service
  • Early wear detection 
  • Preservation of the target condition 
  • High availability of HAIMER specialists 
  • Consistent quality level 
  • Prerequisite for certification according to ISO 9001
Haimer care in detail

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