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Robotic Hand Changer (Robot Tool Changer)

Quick, Precise Tool Switching for Robotic Arms

From small cobots to high-load industrial robots. Boost flexibility and reduce changeover time with KOSMEK’s patented Zero-Backlash Technology and maintenance-free robotic hand changers. As part of our Factory Automation solutions, they support reliable automated tool changes across robotic cells.

Pneumatic, Mechanical, or Manual Types
High Precision: 3 µm Repeatability
Payload Range: 0.5 kg to 360 kg
A Variety of External Options
Zero-Backlash Technology (Patented)
High Durability: Tested Over 2 Million Cycles

Why a Robotic Hand Changer Makes a Difference

Patented Zero-Backlash Technology keeps the coupling rigid and play-free for stable, repeatable tool changes.

Achieve consistent docking accuracy with repeatability down to 3 µm for reliable automation cycles.

Cover applications from small cobots to high-load industrial robots with a wide payload lineup.

Choose the changer concept that fits your cell design, from automatic pneumatic to mechanical or manual exchange.

Configure the interface for your application with model-dependent options for utilities, protection, and identification.

Designed for long-term production use with durability testing stated over 2 million cycles.

Robotic Hand Changer Models

Pneumatic Single-Acting Robotic Hand Changer (STR)

Pneumatic single-acting robotic hand changer clamped by spring for safe, stable tool exchange. Designed for high rigidity and high accuracy, while reducing ports and air consumption.

  • Operating Pressure: 0.35 ~ 0.7 MPa
  • Spring Lock / Air Release
  • High Accuracy: 3 μm
  • Tool Fall Prevention
  • Number of Ports and Air Consumption are Reduced

Catalog: Robotic Hand Changer (STR)

KOSMEK Robotic Hand Changer (STR), single acting spring lock, master and tool side shown

High Payload Robotic Hand Changer (SWL)

Double-acting series for high payload robots and heavier end effectors. ISO mounting pattern supports straightforward integration and stable operation.

  • Operating Pressure: 0.3 ~ 0.7 MPa
  • Air Lock / Air Release
  • Payload Line-up: 80 kg / 120 kg / 180 kg / 300 kg
  • ISO mounting pattern

Catalog: Robotic Hand Changer (SWL)

KOSMEK High Payload Robotic Hand Changer (SWL), double acting, master and tool side shown

Automatic Robotic Hand Changer Series (SWR)

Double-acting automatic pneumatic tool changers designed for flexible automation, from compact robots to high payload applications.

Model SWR

  • Operating Pressure: 0.35 ~ 1 MPa
  • Air Lock / Air Release
  • Payload Range: 3 kg ~ 360 kg
  • High Accuracy: 3 μm
  • High Durability: Tested Over 2 Million Cycles

Catalog: Robotics Hand Changer (SWR)

Model SWR0010

  • Operating Pressure: 0.35 ~ 0.7 MPa
  • Air Lock / Air Release
  • Payload Range: 0.5 kg ~ 1 kg
  • High Accuracy: 5 μm
  • High Durability: Tested Over 1 Million Cycles

Catalog: Robotic Hand Changer (SWR0010)

KOSMEK Robotic Hand Changer (SWR), double acting pneumatic, master and tool side shown with utility interface

Compact Hand Changer (SVS) for Semiconductor Processes

Compact double-acting changer developed for clean manufacturing, enabling high-precision exchange of tools and nozzles in semiconductor environments.

  • Operating Pressure: 0.35 ~ 0.7 MPa
  • Air Lock / Air Release
  • Mechanical lock holds connection even at zero air
  • Payload: 1 kg / 7 kg
  • High Accuracy: 5 μm

Catalog: Robotic Hand Changer (SVS)

KOSMEK Compact Changer (SVS) for semiconductor processes, double acting, master and tool side shown

Manual Robotic Hand Changer (SXR)

Manual quick change solution for cobots and workflows where tools are exchanged by hand with maximum simplicity.

  • Operating Pressure: Not required
  • Manual Lock / Manual Release
  • Manual quick change concept for cobots and flexible cells

Catalog: Robotic Hand Changer (SXR)

KOSMEK Manual Robotic Hand Changer (SXR) for cobots, manual lock and release, master and tool side shown

Mechanical Robotic Hand Changer (SMR)

Mechanical changer that uses the robot’s motion for connection and release, helping reduce dependency on pneumatic interfaces.

  • Operating Pressure: Not required
  • Mechanical Lock / Mechanical Release
  • No air or electricity required for tool change
  • High Accuracy: 3μm

Catalog: Robotic Hand Changer (SMR)

KOSMEK Mechanical Robotic Hand Changer (SMR), mechanical lock and release, master and tool side shown

Frequently Asked
Questions

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Catalogs

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Frequently Asked
Questions

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It lets a robot switch end effectors quickly and repeatably, reducing changeover time and enabling one robot to run multiple tasks like handling, assembly, inspection, deburring, and dispensing.

Choose based on payload, cycle rate, safety concept, and environment. STR is single-acting with spring lock, SWR is double-acting for general automation, SWL is for higher payloads, SVS is for clean manufacturing including semiconductor, SXR is manual for cobots, and SMR is mechanical where pneumatic supply is not preferred. See the full model overview here

Spring Lock / Air Release clamps mechanically by spring and releases with air, supporting a safety-focused concept. Air Lock / Air Release uses air for both locking and releasing for controlled actuation in automated cycles.

They use a rigid coupling and locating mechanism with patented Zero-Backlash Technology to eliminate play at the interface, supporting stable positioning and consistent cycle-to-cycle performance.

Yes. Selected models are designed for clean manufacturing workflows, including semiconductor applications where consistent tool or nozzle exchange and contamination control are important.

Product
Catalogs

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Catalog: Robotic Hand Changer (STR)
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Catalog: Robotic Hand Changer (SWL)
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Catalog: Robotics Hand Changer (SWR)
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Catalog: Robotic Hand Changer (SWR0010)
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Catalog: Robotic Hand Changer (SVS)
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Catalog: Robotic Hand Changer (SXR)
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Catalog: Robotic Hand Changer (SMR)
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