Connection Pin: Diameter 20-50 mm, Length 100-300 mm

Component Specifications

Definition

The Connection Pin is a critical cylindrical fastening component designed for the Jib Foot Connection in industrial machinery. It serves as a mechanical interface that aligns and secures the jib foot to its mounting structure, facilitating precise load transfer and maintaining structural stability under operational stresses. Typically manufactured to tight tolerances, it prevents relative movement between connected parts while allowing for controlled articulation or disassembly when required.

Working Principle

The pin operates on the principle of shear and bearing resistance. It is inserted through aligned holes in the jib foot and its mating component, where it resists shear forces from operational loads (e.g., lifting, rotation) and prevents lateral displacement. Its cylindrical geometry ensures uniform stress distribution, while retention mechanisms (e.g., cotter pins, locking rings) secure it against unintended removal.

Materials

High-strength alloy steel (e.g., AISI 4140, EN19), heat-treated to achieve a hardness of 28-32 HRC for durability and wear resistance. Surface treatments may include zinc plating, black oxide coating, or phosphate coating for corrosion protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	100-300 mm
Diameter	20-50 mm
Tolerance	h7/g6 fit
Shear Strength	≥400 MPa
Surface Finish	Ra 1.6 μm

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 8734, DIN 6325, ISO 2338

Parent Products

This component is used in the following industrial products

Jib Foot Connection

Structural component that connects the jib (boom) to the crane's rotating platform or pedestal.

View Product Details

Engineering Analysis

Risks & Mitigation

Shear failure under overload
Corrosion in humid environments
Wear-induced loosening
Misalignment during installation

FMEA Triads

Trigger: Excessive lateral load beyond design limits
Failure: Pin shears, causing jib foot detachment
Mitigation: Implement load monitoring systems and use pins with higher shear ratings

Trigger: Inadequate corrosion protection
Failure: Pin seizes or weakens, hindering removal or causing fracture
Mitigation: Apply appropriate coatings and conduct regular environmental checks

Industrial Ecosystem

Compatible With

Overhead cranes, jib cranes, material handling systems

Typical Suppliers & Equivalents

Crosby, CM, RUD, J.D. Neuhaus

Compliance & Inspection

Tolerance

Diameter tolerance per ISO 286 h7, length tolerance ±0.5 mm

Test Method

Shear testing per ASTM F606, hardness testing per ISO 6508

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.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Connection Pin

Manufacturer profiles associated with Connection Pin.

Sourcing Connection Pin from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

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

Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What is the primary function of a Connection Pin in a Jib Foot Connection?

It aligns and secures the jib foot to its base, transferring operational loads and preventing misalignment or detachment.

How often should Connection Pins be inspected?

Inspect during routine maintenance (e.g., every 500 operating hours) for wear, corrosion, or deformation, and replace if tolerances exceed specifications.

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.

Connection Pin