Support Arms/Chocks for Decoilers and Uncoilers

Product Specifications

Technical details and manufacturing context for Support Arms/Chocks

Definition

Support Arms/Chocks are critical mechanical components in decoiler and uncoiler equipment used in metal processing lines. They function as adjustable or fixed supports that prevent lateral movement, vibration, and misalignment of material coils during unwinding operations. These components ensure smooth, controlled feeding of sheet metal, wire, or other coiled materials into downstream processing equipment by maintaining proper coil positioning and tension control. Constructed from carbon steel or alloy steel, they are designed to withstand the forces encountered in heavy-duty industrial environments. Typical specifications include a load capacity of 5–50 tonnes per arm, a support width of 100–600 mm, and an adjustment range of 50–300 mm. With material grades Q235–Q345 per GB/T 700. Surface hardness ranges from 40–55 HRC per ISO 18265, and operating temperature is -20 to 80°C. Protection class for any electrical components is IP54–IP65 per IEC 60529. Each arm weighs between 150 and 800 kg, and critical mounting dimensions are held to a tolerance of ±0.5 mm per ISO 2768-m. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. Support Arms/Chocks are essential for maintaining coil stability, reducing wear on downstream equipment, and ensuring consistent material feed. They are available in various configurations to accommodate different coil widths and diameters, with adjustment mechanisms that may be hydraulic, pneumatic, or mechanical. Proper selection requires consideration of coil weight, width, and operating environment. Regular inspection and maintenance are necessary to ensure optimal performance and longevity.

Working Principle

Support Arms/Chocks operate by applying controlled lateral pressure or providing fixed positioning points against the sides of material coils. They typically feature adjustable mechanisms (hydraulic, pneumatic, or mechanical) that allow operators to accommodate different coil widths and diameters. During operation, they maintain consistent contact with the coil edges, preventing wobble and ensuring uniform unwinding while compensating for coil diameter reduction as material is fed through the system. The arms are positioned to support the coil from the sides, and their adjustment range allows for precise alignment. As the coil diameter decreases, the arms may need to be repositioned to maintain optimal support. The load capacity and support width are critical parameters that determine the maximum coil size and weight the arms can handle. Proper adjustment and maintenance are essential to prevent excessive wear and ensure reliable operation.

Common Materials

Carbon Steel, Alloy Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Load Capacity	5–50 t	Maximum coil weight supported per arm
Support Width	100–600 mm	Width of the support surface contacting the coil
Adjustment Range	50–300 mm	Vertical or horizontal adjustment travel
Material Grade	Q235–Q345	Structural steel for welded constructionGB/T 700
Surface Hardness	40–55 HRC	For wear-resistant contact surfacesISO 18265
Operating Temperature	-20–80 °C	Non-freezing environment recommended
Protection Class	IP54–IP65	For electrical components if equippedIEC 60529
Weight per Arm	150–800 kg	Affects installation and handling
Tolerance	±0.5 mm	For critical mounting dimensionsISO 2768-m

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

Support Arm Frame Part
Main structural element that provides rigidity and mounting points

Material: Carbon Steel
Adjustment Mechanism
Allows for width adjustment to accommodate different coil sizes

Material: Alloy Steel
Contact Pad/Shoe Part
Interface surface that makes contact with the coil edge to prevent damage

Material: Polyurethane or Rubber
Mounting Bracket Part
Connects the support arm to the decoiler/uncoiler frame

Material: Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Support Arms/Chocks.

Applied To / Applications

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

Decoiler / Uncoiler

View system integration details

Manufacturers of Support Arms/Chocks

Manufacturer profiles associated with Support Arms/Chocks.

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Frequently Asked Questions

What is the primary function of Support Arms/Chocks?

They provide lateral support and stabilization to coils during unwinding, preventing lateral movement, vibration, and misalignment, ensuring smooth material feeding.

What materials are typically used for Support Arms/Chocks?

Common materials include carbon steel and alloy steel, with material grades such as Q235–Q345 per GB/T 700, but specific grades must be confirmed with the manufacturer.

How do I select the right Support Arms/Chocks for my application?

Consider the maximum coil weight, coil width, adjustment range, and operating environment. Verify load capacity, support width, and other parameters against your requirements and consult the manufacturer.

What maintenance is required for Support Arms/Chocks?

Regularly inspect for wear, ensure proper adjustment, and check for any loose components. Follow the manufacturer's guidelines for lubrication and replacement of worn parts.

Data Basis

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

Preliminary Technical Classification

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pressure:	N/A (mechanical component)
other spec:	Max coil weight: 50,000 kg, Max coil diameter: 2500 mm, Max coil width: 2000 mm
temperature:	-20°C to +80°C

Support Arms/Chocks

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards