Tigh­tening technique

Built-In Nutrun­ners – DS Series

Error-free proces­ses are the foun­da­tion of high-quality products – espe­ci­ally in indus­trial manu­fac­tu­ring, where relia­bi­lity is the highest priority.

Screw connec­tions must not become a weak point.
To prevent errors from occur­ring in the first place, DSM’s digi­tally control­led built-in nutrun­ners ensure consis­t­ently high quality and maxi­mum process relia­bi­lity.

All DSM products can be seam­lessly inte­gra­ted into new or exis­ting produc­tion lines – deli­ve­ring tail­o­red solu­ti­ons for statio­nary tigh­tening tech­no­logy.

Our experts support you from plan­ning and commis­sio­ning all the way to long-term assis­tance during ongo­ing opera­tion – compe­tent, prac­ti­cal, and reliable.

Statio­nary Tigh­tening Tech­no­logy by DSM

  • Digi­tal tigh­tening systems for inte­gra­tion into assem­bly lines
  • Built-in nutrun­ners from 0.05 Nm to 2400 Nm
  • Error-free setup through inte­gra­ted para­me­ter memory
  • Main­ten­ance-free, brushl­ess servo motor with clock­wise / coun­ter­clock­wise rotation
  • Robust housing made of stain­less steel and aluminium
  • Flexi­ble use thanks to a wide range of drive and output variants

Access­ories for DS Built-in Nutrun­ners
Expand your appli­ca­tion possi­bi­li­ties with proven access­ories for statio­nary tigh­tening tech­no­logy: crow­foot gear units, tool change boxes, hand­ling systems, as well as custo­mi­zed tech­ni­cal solu­ti­ons on request.
Our port­fo­lio also includes complete work­sta­tions – from ergo­no­mic manual work­sta­tions to semi-auto­ma­ted solutions.

▶ What’s the Right Torque for Your Appli­ca­tion?
Our “Bolt Tigh­tening Torque Chart” provi­des tips and typi­cal refe­rence values for stan­dard metric threads – a prac­ti­cal guide for selec­ting the right nutrunner.

Select a Series
for More Information:

0.05 – 4 Nm (4 versions)

DS 26

0.5 – 15 Nm (4 versions)

DS 34

0.5 – 35 Nm (5 versions)

DS 44

5 – 140 Nm (5 versions)

DS 57

44 – 600 Nm (5 versions)

DS 80

180 – 2400 Nm (5 versions)

DS 80–130

DS 26 Series

Statio­nary Tigh­tening Tools for Fine Assem­bly Tasks

DS 26

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-26 series is available in 0.5 Nm, 1 Nm, 2 Nm, and 4 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Motor and gear­box inte­gra­ted in an alumi­num housing
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Fixed, without output – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via motor sensors
  • Angle reso­lu­tion: 3.7° (DS26/005, 26/01); 2.6° (DS26/02);
    1.0° (DS26/04)

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 4.3° (DS26/005, 26/01); 2.1° (DS26/02);
    1.0° (DS26/04)
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Versi­ons Torque Range Speed (MDW) Speed (SA)
DS 26 / 005 0.05 – 0.5 Nm 1450 1/min 1700 1/min
DS 26 / 01 0.2 – 1 Nm 1450 1/min 1700 1/min
DS 26 / 02 0.4 – 2 Nm 1020 1/min 820 1/min
DS 26 / 04 0.8 – 4 Nm 400 1/min 400 1/min

Stan­dard Options

  • Moun­ting flange
  • Direct output vari­ant (without spring deflection)
  • Spring output with 20 mm or 50 mm spring deflection
  • Self start output with 5 mm spring deflec­tion – tigh­tening process starts auto­ma­ti­cally when compressed
  • Output offset (displa­ced output) with 20 mm spring deflec­tion – redu­ces center distance and impro­ves acces­si­bi­lity in confi­ned screw locations
  • Angle head with DIN 3126 D6.3 quick-change chuck
  • Vacuum screw holder
  • Output unit with galva­nic isolation
  • Output features (1/4″ hex/square, quick-change chuck B3/B5.5/D6.3) – depen­ding on confi­gu­ra­tion, compa­ti­ble with spring output, self-start output, or output offset
Data sheet DS 26 (PDF, 323KB)
Handschrauber DSH 26

DS 34 Series

Versa­tile Statio­nary Tigh­tening Tech­no­logy in a Compact Format

DS 34

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-34 series is available in 2.5 Nm, 5 Nm, 10 Nm, and 15 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Motor and gear­box inte­gra­ted in an alumi­num housing
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Fixed, without output – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digi­tal abso­lute encoder
  • Angle reso­lu­tion: 0.1°

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 3.3° (DS34/025, 34/05); 1.7° (DS34/10, 34/15)
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 34 / 025 MDW 0.5 – 2.5 Nm 880 1/min
DS 34 / 05 MDW or SA 1 – 5 Nm 880 1/min
DS 34 / 10 MDW or SA 2 – 10 Nm 1540 1/min
DS 34 / 15 MDW or SA 3 – 15 Nm 1540 1/min

Stan­dard Options

  • Moun­ting flange
  • Direct output vari­ant (without spring deflection)
  • Spring output with 30 mm or 50 mm spring deflection
  • Self start output with 30 mm or 50 mm spring deflec­tion – tigh­tening process starts auto­ma­ti­cally when compressed
  • Output offset (displa­ced output) – redu­ces center distance and impro­ves acces­si­bi­lity in confi­ned screw locations
  • Angle head with DIN 3121 F10 3/8“ male square drive
  • Output unit with galva­nic isolation
  • Output features (1/4″ / 3/8″ square drive, D6.3–24 mm quick-change chuck) – compa­ti­ble with direct moun­ting as well as with spring output, self-start output, and output offset
Data sheet DS 34 (PDF, 312KB)
Handschrauber DSH 26

DS 44 Series

Compact Statio­nary Nutrun­ners for Versa­tile Applications

DS 44

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-44 series is available in 2.5 Nm, 5 Nm, 10 Nm, 20 Nm, and 35 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Motor and gear­box inte­gra­ted in an alumi­num housing
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Fixed, without output – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digi­tal abso­lute encoder
  • Angle reso­lu­tion: 0.1°

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 3.3° (DS44/05); 2.3° (DS44/10); 1.4° (DS44/20);
    1.0° (DS44/35)
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 44 / 025 MDW 0.5 – 2.5 Nm 1300 1/min
DS 44 / 05 MDW or SA 1 – 5 Nm 1300 1/min
DS 44 / 10 MDW or SA 2 – 10 Nm 900 1/min
DS 44 / 20 MDW or SA 4 – 20 Nm 530 1/min
DS 44 / 35 MDW or SA 7 – 35 Nm 480 1/min

Stan­dard Options

  • Moun­ting flange
  • Direct output vari­ant (without spring deflection)
  • Spring output with 30 mm or 50 mm spring deflection
  • Self start output – tigh­tening process starts auto­ma­ti­cally when compressed
  • Output offset (displa­ced output) – redu­ces center distance and impro­ves acces­si­bi­lity in confi­ned screw locations
  • Angle head with DIN 3121 F10 3/8“ male square drive
  • Output unit with galva­nic isolation
  • Output features (1/4″ / 3/8″ square drive, D6.3–24 mm quick-change chuck) – compa­ti­ble with direct moun­ting as well as with spring output, self-start output, and output offset
Data sheet DS 44 (PDF, 302KB)
Handschrauber DSH 26

DS 57 Series

Robust and Long-Lasting Statio­nary Nutrunners

DS 57

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-57 series is available in 25 Nm, 50 Nm, 70 Nm, 90 Nm, and 140 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output vari­ants – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digi­tal abso­lute encoder
  • Angle reso­lu­tion: 0.1°

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 4.5° (DS57/25, 57/50);
    2.2° (DS57/70); 1.2° (DS57/140)
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 57 / 25 MDW 5 – 25 Nm 650 1/min
DS 57 / 50 MDW or SA 10 – 50 Nm 800 1/min
DS 57 / 70 MDW or SA 14 – 70 Nm 800 1/min
DS 57 / 90 MDW 18 – 90 Nm 430 1/min
DS 57 / 140 MDW or SA 28 – 140 Nm 430 1/min

Stan­dard Options

  • Motor Offset – side-moun­ted motor for a more compact design and shorter instal­la­tion length
  • Moun­ting flange
  • Direct output vari­ant (without spring deflection)
  • Spring output with 50 mm or 100 mm spring deflec­tion, available with 3/8″ or 1/2″ square drive
  • Self-start output with 50 mm spring deflec­tion and 3/8″ or 1/2″ square drive – tigh­tening process starts auto­ma­ti­cally when compressed
  • Output offset (displa­ced output) – redu­ces center distance and impro­ves acces­si­bi­lity in confi­ned screw locations
  • Angle head with 1/2“ male square drive
Data sheet DS 57 (PDF, 285KB)
Handschrauber DSH 26

DS 80 Series

Powerful Statio­nary Nutrun­ners for High Torque Applications

DS 80

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-80 series is available in 220 Nm, 300 Nm, 420 Nm, 500 Nm, and 600 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output vari­ants – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digi­tal abso­lute encoder
  • Angle reso­lu­tion: 0.1°

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 1.2° (DS80/220, 80/300);
    1.0° (DS80/420, 80/500, 80/600)
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 80 / 220 MDW or SA 44 – 220 Nm 320 1/min
DS 80 / 300 MDW or SA 60 – 300 Nm 320 1/min
DS 80 / 420 MDW or SA 84 – 420 Nm 160 1/min
DS 80 / 500 MDW or SA 100 – 500 Nm 160 1/min
DS 80 / 600 MDW or SA 120 – 600 Nm 160 1/min

Stan­dard Options

  • Motor Offset – side-moun­ted motor for a more compact design and shorter instal­la­tion length
  • Moun­ting flange
  • Direct output vari­ant (without spring deflection)
  • Spring output with 50 mm, 100 mm, or 150 mm spring deflec­tion and 3/4″ square drive
  • Self-start output with 50 mm, 100 mm, or 150 mm spring deflec­tion and 3/4″ square drive – tigh­tening process starts auto­ma­ti­cally when compressed
  • Output offset (displa­ced output) – redu­ces center distance and impro­ves acces­si­bi­lity in confi­ned screw locations
  • Output offset available in two versi­ons: with direct output (1″ square drive) or with 50 mm spring deflec­tion and 3/4″ square drive
  • Angle head (max. 220 Nm) with DIN 3121 F20 3/4“ male square drive
Data sheet DS 80 (PDF, 321KB)
Handschrauber DSH 26

DS 80–130 Series

Statio­nary Nutrun­ners with Gear­box Attach­ment for Heavy-Duty Use

DS 80-130

Built-in nutrun­ner with elec­tro­ni­cally control­led servo motor and digi­tal data trans­mis­sion.
The DS-80–130 series is available in 900 Nm, 1000 Nm, 1500 Nm, 2000 Nm, and 2400 Nm versi­ons – either as MDW type (with digi­tal torque sensor) or as current-control­led SA type.

Stan­dard Equipment:

  • Status indi­ca­tion via light field
  • Plug-and-play para­me­ter transmission
  • Conti­nuously adjus­ta­ble speed, clock­wise / coun­ter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output vari­ants – see stan­dard options

MDW Control Type

  • Directly inte­gra­ted torque measu­re­ment via DAkkS-cali­bra­ted digi­tal sensor
  • Torque accu­racy: 0.5% of final value
  • Tole­rance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digi­tal abso­lute encoder
  • Angle reso­lu­tion: 0.1°

For more infor­ma­tion on cali­bra­tion and tracea­bi­lity, please refer to the “Cali­bra­tion” page.

SA Control Type

  • Indi­rect torque measu­re­ment via current-control­led shut-off
  • Torque accu­racy depends on tool cali­bra­tion – adjus­t­ment via refe­rence measu­re­ment and confi­gu­ra­tion on the Multi­Pro 3G
  • Regu­lar refe­rence measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle reso­lu­tion: 1.0°
  • Cost-effec­tive solu­tion for simple tigh­tening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 80–130 / 900 MDW or SA 180 – 900 Nm 75 1/min
DS 80–130 / 1000 MDW or SA 200 – 1000 Nm 75 1/min
DS 80–130 / 1500 MDW or SA 300 – 1500 Nm 75 1/min
DS 80–130 / 2000 MDW or SA 400 – 2000 Nm 37 1/min
DS 80–130 / 2400 MDW or SA 480 – 2400 Nm 37 1/min

Stan­dard Options

  • Motor Offset – side-moun­ted motor for a more compact design and shorter instal­la­tion length
  • Moun­ting flange
  • Direct output vari­ant (without spring deflec­tion) with 1″ square drive (up to 1000 Nm) or 1.5″ square drive (up to 2400 Nm)
  • Spring output with 50 mm spring deflec­tion, available with 1″ square drive (up to 1000 Nm) or 1.5″ square drive (up to 2400 Nm)
Data sheet DS 80–130 (PDF, 327KB)
Handschrauber DSH 26