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Fingers/Jaws Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

Fingers/Jaws are the terminal components of robotic grippers or end-effectors designed to make physical contact with workpieces during material handling, assembly, or manipulation operations. They translate the gripper's actuation force into precise gripping action, with geometries and surfaces engineered for specific object shapes, weights, and surface properties. These components are critical for achieving reliable grip, minimizing part damage, and ensuring repeatable positioning in automated systems.

Working Principle

Fingers/Jaws operate by converting linear or rotational motion from the gripper's actuator into clamping force against an object. When the gripper closes, the fingers/jaws move symmetrically or asymmetrically to envelop or pinch the workpiece, creating friction or form-fit retention. Force is typically controlled through pneumatic, hydraulic, or electric actuation, with some designs incorporating compliance or sensing for adaptive gripping. The working principle relies on mechanical advantage, surface friction, and sometimes vacuum or magnetic assistance for secure handling.

Materials

Common materials include aluminum alloys (e.g., 6061-T6) for lightweight applications, stainless steel (e.g., 304, 316) for corrosion resistance and durability, engineered plastics (e.g., PEEK, UHMW-PE) for non-marring or food-safe requirements, and polyurethane or rubber for high-friction surfaces. Material selection depends on load capacity, wear resistance, chemical exposure, and compliance with industry standards like FDA for food contact or ISO for cleanroom use.

Technical Parameters

IP Rating IP54 to IP67
Max Payload 0.1-50 kg
Repeatability ±0.05 mm
Stroke Length 5-200 mm
Grip Force Range 10-5000 N
Mounting Interface ISO 9409-1 or custom
Operating Temperature -20°C to 80°C

Standards

ISO 14539, ISO 9409-1, DIN 332, DIN 6499

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fingers/Jaws.

Parent Products

This component is used in the following industrial products

End-Effector (Gripper)

The terminal component of a robotic manipulator arm designed to grasp, hold, and manipulate objects.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear and tear reducing grip reliability
Misalignment causing part damage or dropped objects
Material incompatibility leading to contamination or failure
Overloading causing mechanical failure

FMEA Triads

Trigger: Abrasive workpiece surfaces or high cycle counts
Failure: Excessive wear on contact surfaces reduces friction and grip stability
Mitigation: Use wear-resistant materials like hardened steel or apply protective coatings; implement regular inspection schedules

Trigger: Incorrect finger geometry or misalignment
Failure: Poor grip leads to dropped parts or inaccurate positioning
Mitigation: Design fingers to match workpiece contours; use alignment features during installation; perform grip tests

Trigger: Exceeding rated load capacity
Failure: Mechanical deformation or breakage of fingers/jaws
Mitigation: Adhere to specified payload limits; incorporate force sensors or overload protection in the gripper system

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Dimensional tolerances typically ±0.1 mm for mounting interfaces; grip force tolerance within ±5% of specified range

Test Method

Testing per ISO 14539 for graspability and reliability; includes cycle testing, load capacity verification, and environmental exposure tests

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

How do I select the right fingers/jaws for my application?

Consider object weight, shape, surface material, required grip force, cycle time, and environmental conditions. Match finger geometry to the workpiece, ensure material compatibility, and verify mounting interface with your gripper model.

Can fingers/jaws be customized?

Yes, they are often custom-designed for specific tasks. Customizations include geometry, surface texture, material, and integration of sensors or compliance mechanisms to handle delicate or irregular objects.

What maintenance do fingers/jaws require?

Regular inspection for wear, cleaning of contact surfaces, lubrication of moving parts if applicable, and torque checks on fasteners. Replace if wear affects grip reliability or causes part damage.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Fingers/Jaws