Editorial Technical Reference

Tool Gripper

This page explains how Tool Gripper is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical component of a Tool Arm designed to securely grasp, hold, and release tools or workpieces during automated operations.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Tool Gripper

Definition
The Tool Gripper is the end-effector component of a Tool Arm, responsible for the physical interface and secure manipulation of tools, parts, or materials. It enables the Tool Arm to perform its primary function by providing a reliable gripping mechanism that can be actuated to open, close, and apply controlled force, facilitating tasks such as assembly, handling, machining, or inspection in automated systems. The gripper typically operates via pneumatic, hydraulic, or electric actuation. A control signal triggers an actuator (like a piston or motor), which converts energy into mechanical motion. This motion is transmitted through a linkage or gear system to move the gripper's jaws or fingers. The jaws close to apply clamping force on the object, securing it based on parameters like grip force and stroke. Sensors may provide feedback on position or force for precise control. The Tool Gripper is available in configurations with clamping force ranging from 5 to 20 kN, jaw opening range from 10 to 100 mm, and positioning repeatability of ±0.02 mm (ISO 230-2). Operating pressure is 0.4–0.8 MPa, and operating temperature range is -10 to 60 °C. Ingress protection rating is IP54–IP65 (IEC 60529). Weight ranges from 2 to 15 kg. Body materials include aluminum alloy or steel (GB/T 3190), with jaw hardness of HRC 45–60 (GB/T 230.1). Mounting interface is ISO 9409-1-50-4-M6 (ISO 9409-1). These values are reference ranges; verify model-specific specifications with the manufacturer.
Working Principle
The Tool Gripper operates via pneumatic, hydraulic, or electric actuation. A control signal triggers an actuator, such as a piston or motor, which converts energy into mechanical motion. This motion is transmitted through a linkage or gear system to move the gripper's jaws or fingers. The jaws close to apply clamping force on the object, securing it based on parameters like grip force and stroke. Sensors may provide feedback on position or force for precise control. The gripper's design allows for adjustable clamping force and jaw opening to accommodate various workpiece sizes. The operating pressure range of 0.4–0.8 MPa ensures sufficient force, while the temperature range of -10 to 60 °C maintains seal integrity. The mounting interface conforms to ISO 9409-1, enabling compatibility with standard robot arms.
Common Materials
Aluminum Alloy, Steel, Engineering Plastic
Technical Parameters
ParameterTypical rangeNotes & selection driver
Clamping Force5–20 kNRequired to hold workpiece securely during machining
Jaw Opening Range10–100 mmDetermines workpiece size capacity
Positioning Repeatability±0.02 mmCritical for automated tool changeISO 230-2
Operating Pressure0.4–0.8 MPaBelow 0.4 MPa insufficient clamping force
Operating Temperature Range-10–60 °COutside range may affect seals and materials
Ingress Protection RatingIP54–IP65Protects against dust and water jetsIEC 60529
Weight2–15 kgAffects arm dynamics and payload
Body MaterialAluminum alloy / SteelSteel for high strength, aluminum for lightweightGB/T 3190
Jaw HardnessHRC 45–60Ensures wear resistanceGB/T 230.1
Mounting InterfaceISO 9409-1-50-4-M6Compatible with standard robot armsISO 9409-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Jaws / Fingers Part
    Directly contact and grip the tool or workpiece; often interchangeable for different object shapes.
    Material: Steel or Hardened Aluminum
  • Actuator
    Converts energy (pneumatic, electric, hydraulic) into mechanical motion to drive the jaw movement.
    Material: Aluminum Alloy, Steel
  • Body / Housing Part
    Encloses and supports internal mechanisms, providing mounting points to the Tool Arm.
    Material: Aluminum Alloy
  • Linkage or Gear System
    Turns the actuator's motion into synchronised jaw travel and multiplies the grip force.
  • Feedback Sensor Optional
    Confirms jaw position or grip force for closed-loop handling.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
cycle life: ≥1,000,000 cycles
grip force: 50 to 500 N
temperature: -20°C to 120°C
Media Compatibility
✓ metal workpieces (steel, aluminum) ✓ plastic components (ABS, polycarbonate) ✓ ceramic tools
Unsuitable: highly corrosive chemical environments (e.g., concentrated acids)
Sizing Data Required
  • workpiece/tool weight (kg)
  • gripping surface geometry (mm)
  • required grip force (N)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wear and Tear on Gripping Surfaces
Cause: Abrasive particles from handled materials or environmental contaminants causing gradual material loss, reducing grip force and precision.
Actuator Seal Failure
Cause: Degradation of pneumatic or hydraulic seals due to contamination, improper lubrication, or excessive cycle frequency leading to pressure loss and reduced gripping force.
Maintenance Indicators
  • Audible hissing or air leakage sounds during operation indicating seal or pneumatic system failure
  • Visible misalignment or inconsistent gripping patterns on handled objects suggesting wear or mechanical issues
Engineering Tips
  • Implement regular cleaning protocols for gripping surfaces and actuator components to prevent abrasive contamination buildup
  • Establish preventive maintenance schedules for seal inspection and replacement based on cycle counts rather than waiting for failure symptoms

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI B11.19 - Performance requirements for safeguarding CE Marking - Machinery Directive 2006/42/EC

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter tolerance: +/-0.01 mm
  • Parallelism of gripping surfaces: 0.02 mm
Quality Inspection
  • Hardness testing (Rockwell C scale)
  • Dimensional verification with coordinate measuring machine (CMM)

Manufacturers of Tool Gripper

Manufacturer profiles associated with Tool Gripper.

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Frequently Asked Questions

What is the typical clamping force range for this Tool Gripper?

The clamping force range is 5–20 kN, as listed in the directory. However, the actual force depends on the specific model and operating pressure. Always verify the required force for your application with the manufacturer.

What is the jaw opening range and how does it affect workpiece size?

The jaw opening range is 10–100 mm, which determines the maximum and minimum workpiece dimensions that can be gripped. For larger or smaller parts, consider a different gripper model or custom jaws.

What is the positioning repeatability and why is it important?

Positioning repeatability is ±0.02 mm (ISO 230-2). This indicates the gripper's ability to return to the same position repeatedly, which is critical for precise automated tool changes and consistent operations.

What are the operating pressure and temperature limits?

The operating pressure is 0.4–0.8 MPa, and the temperature range is -10 to 60 °C. Operating outside these ranges may result in insufficient clamping force or damage to seals and materials. Always confirm with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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