Coupler Plate: Thickness 15-40 mm, Flatness Tolerance ±0.1 mm/m

Component Specifications

Definition

The Coupler Plate is a critical structural interface component in industrial quick-attach systems, designed to facilitate rapid connection and disconnection between machine modules, attachments, or tooling. It features precisely machined alignment features, standardized bolt patterns, and load-bearing surfaces that ensure secure mechanical coupling while maintaining operational alignment and safety. This component enables efficient equipment changeovers in manufacturing, material handling, and construction applications.

Working Principle

The Coupler Plate operates on mechanical interlock and force distribution principles. When engaged with a mating component, alignment pins or guides ensure proper positioning, while clamping mechanisms or bolted connections create a rigid connection. The plate distributes operational forces (torsional, shear, and compressive loads) across its surface area to prevent stress concentration and ensure system integrity during dynamic operations.

Materials

Typically manufactured from high-strength alloy steel (e.g., AISI 4140, 4340) or structural steel (ASTM A36) with hardness ranging from 28-32 HRC. May include wear-resistant surface treatments like nitriding, carburizing, or hard chrome plating for enhanced durability. Alternative materials include aluminum alloys (6061-T6) for weight-sensitive applications or stainless steel (304, 316) for corrosive environments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	5-25 kg (depending on dimensions)
Thickness	15-40 mm
Load Capacity	10-50 kN (varies by size)
Surface Finish	Ra 3.2 μm or better
Bolt Hole Pattern	ISO standard or custom
Flatness Tolerance	±0.1 mm/m
Operating Temperature	-20°C to +150°C

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

Standards

ISO 2328, ISO 12100, DIN 15058, DIN 15434

Parent Products

This component is used in the following industrial products

Quick-Attach System

A mechanical interface system that enables rapid attachment and detachment of various implements to a compact track loader.

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Engineering Analysis

Risks & Mitigation

Misalignment during coupling
Fatigue failure under cyclic loading
Corrosion in harsh environments
Wear of mating surfaces
Improper bolt torque leading to connection failure

FMEA Triads

Trigger: Improper alignment during coupling
Failure: Premature wear, reduced connection strength, equipment damage
Mitigation: Implement visual alignment guides, use precision machining, provide operator training

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation, catastrophic failure
Mitigation: Design with adequate safety factors, use fatigue-resistant materials, implement regular inspection protocols

Trigger: Corrosion in aggressive environments
Failure: Reduced structural integrity, seizure of connection points
Mitigation: Apply protective coatings, use corrosion-resistant materials, implement environmental controls

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-m, flatness within 0.1 mm/m, positional tolerance of bolt holes ±0.05 mm

Test Method

Load testing per ISO 2328, non-destructive testing (magnetic particle or dye penetrant), dimensional verification with CMM, hardness testing per ASTM E18

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Coupler Plate

Manufacturer profiles associated with Coupler Plate.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a coupler plate in industrial systems?

The coupler plate serves as a standardized interface that enables rapid, secure connection between different machine modules, attachments, or tooling, significantly reducing equipment changeover time while maintaining operational safety and precision.

How do I select the appropriate coupler plate for my application?

Selection depends on load requirements (static and dynamic), environmental conditions, compatibility with existing systems, material specifications, and compliance with relevant industry standards. Consider maximum operational forces, corrosion resistance needs, and required connection speed.

What maintenance is required for coupler plates?

Regular inspection for wear, corrosion, or deformation; cleaning of mating surfaces; lubrication of moving parts if applicable; and torque verification of connection bolts according to manufacturer specifications. Replace if wear exceeds allowable tolerances.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Coupler Plate