Chuck / Gripper Jaws for Rotary Cappers

Product Specifications

Technical details and manufacturing context for Chuck / Gripper Jaws

Definition

The chuck/gripper jaws are precision-engineered components of a rotary capping head assembly. Their primary function is to firmly grasp and retain bottle caps or closures during the high-speed rotation and application phase of the capping process, ensuring proper alignment, consistent torque application, and secure sealing without damaging the cap or container. These jaws are typically mounted within a chuck assembly and are actuated mechanically, pneumatically, or via servo control. During operation, they move radially inward to grip the cap's exterior or engage with specific features (like lugs or ribs). Once engaged, they maintain a calibrated clamping force while the entire head rotates to screw or press the cap onto the container. After application, they retract to release the capped container. The jaws are available in tool steel, hardened alloy steel, or stainless steel, offering durability and resistance to wear. Key parameters include jaw width (20–80 mm) determining cap size range, jaw opening range (10–50 mm) adjustable for cap diameters, gripping force (50–200 N) ensuring secure cap handling, operating pressure (1.0–1.6 MPa), repeatability (±0.05 mm) critical for consistent capping, operating temperature (-10–60 °C) outside which seal integrity may be affected, ingress protection (IP54–IP65) per IEC 60529, material 6061-T6 aluminum alloy per ASTM B211 for strength and weight, and weight (0.5–2.0 kg) affecting inertia and cycle time. These values are directory reference ranges and must be confirmed for the actual model and application. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The jaws are mounted within a chuck assembly and actuated mechanically, pneumatically, or via servo control. During operation, they move radially inward to grip the cap's exterior or engage with specific features like lugs or ribs. Once engaged, they maintain a calibrated clamping force while the entire head rotates to screw or press the cap onto the container. After application, they retract to release the capped container.

Common Materials

Tool Steel, Hardened Alloy Steel, Stainless Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Jaw Width	20–80 mm	Determines cap size range
Jaw Opening Range	10–50 mm	Adjustable for cap diameters
Gripping Force	50–200 N	Ensures secure cap handling
Operating Pressure	1.0–1.6 MPa
Repeatability	±0.05 mm	Critical for consistent capping
Operating Temperature	-10–60 °C	Outside range may affect seal integrity
Ingress Protection	IP54–IP65	Dust and water resistanceIEC 60529
Material	6061-T6	Aluminum alloy for strength and weightASTM B211
Weight	0.5–2.0 kg	Affects inertia and cycle time

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

Jaw Insert Part
The replaceable contact surface that directly grips the cap, often designed with specific profiles (serrated, smooth, contoured) to match cap features and prevent slippage.

Material: Hardened Tool Steel or Carbide
Jaw Body Part
The main structural component that houses the insert and connects to the chuck's actuation mechanism, providing rigidity and alignment.

Material: Alloy Steel
Retention Pin/Screw Part
Fastens the jaw insert to the jaw body, allowing for easy replacement when worn.

Material: Steel

Applied To / Applications

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

Rotary Capping Head

View system integration details

Manufacturers of Chuck / Gripper Jaws

Manufacturer profiles associated with Chuck / Gripper Jaws.

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Frequently Asked Questions

What materials are available for chuck/gripper jaws?

According to the directory, the jaws can be made from tool steel, hardened alloy steel, or stainless steel. The specific material grade should be confirmed with the manufacturer for your application.

What is the gripping force range?

The directory lists a gripping force range of 50–200 N. This ensures secure cap handling, but the exact force required depends on the cap type and capping torque. Verify with the supplier.

What is the operating temperature range?

The operating temperature range is -10 to 60 °C. Outside this range, seal integrity may be affected. Always check the manufacturer's specifications for your specific environment.

What ingress protection rating do these jaws have?

The ingress protection rating is IP54–IP65 per IEC 60529, indicating dust and water resistance. Confirm the exact rating for your model with the manufacturer.

Data Basis

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

Preliminary Technical Classification

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pressure:	Max 10 bar gripping force
other spec:	Max rotational speed: 3000 RPM, Jaw material hardness: 45-55 HRC
temperature:	-20°C to 120°C

Chuck / Gripper Jaws

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards