INDUSTRY COMPONENT

Pusher Rod

A pusher rod is a linear motion component used in stopper pusher assemblies to apply controlled force for positioning or moving objects in industrial machinery.

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Component Specifications

Definition
A pusher rod is a precision-engineered cylindrical component designed for linear actuation within stopper pusher assemblies. It transmits force from a driving mechanism (such as pneumatic, hydraulic, or electric actuators) to a stopper or workpiece, enabling controlled pushing, positioning, or ejection operations in automated systems. The rod typically features mounting interfaces at both ends and operates within guided bushings or linear bearings to maintain alignment and minimize friction.
Working Principle
The pusher rod converts rotational or linear input force from an actuator into linear output motion. When the actuator extends, it pushes the rod forward, which transfers force to the stopper or target object. The rod moves along its axis within a guided housing, ensuring precise linear travel with minimal deflection. Retraction is achieved when the actuator reverses direction, pulling the rod back to its starting position.
Materials
Common materials include: Carbon steel (AISI 1045, 4140) for general applications; Stainless steel (AISI 304, 316) for corrosion resistance; Aluminum alloys (6061-T6) for lightweight needs; Surface treatments: Hard chrome plating, nitriding, or powder coating for wear and corrosion protection.
Technical Parameters
  • Length 100-1000 mm
  • Diameter 10-50 mm
  • Load Capacity 500-5000 N
  • Stroke Length 50-500 mm
  • Surface Roughness Ra ≤ 0.8 μm
  • Operating Temperature -20°C to 120°C
  • Straightness Tolerance ≤ 0.1 mm/m
Standards
ISO 286-2, DIN 2391, ISO 2768-m

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pusher Rod.

pusher rod linear actuator component stopper pusher assembly industrial automation mechanical pushing linear motion machine component force transmission Pusher Rod in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Stopper Pusher Assembly

A mechanical assembly that pushes stoppers into position within hydraulic systems

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Engineering Analysis

Risks & Mitigation
  • Wear and fatigue from cyclic loading
  • Misalignment causing binding or jamming
  • Corrosion in harsh environments
  • Overloading leading to bending or failure
FMEA Triads
Trigger: Insufficient lubrication
Failure: Increased friction and wear, leading to seizing or reduced stroke accuracy
Mitigation: Implement scheduled lubrication and use wear-resistant coatings
Trigger: Misalignment during installation
Failure: Binding, uneven wear, and potential rod bending
Mitigation: Use precision alignment tools during assembly and ensure proper guiding
Trigger: Excessive load beyond design limits
Failure: Permanent deformation or fracture of the rod
Mitigation: Incorporate load sensors or mechanical stops to prevent overloading

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Diameter tolerance: h7 per ISO 286-2; Straightness: ≤ 0.1 mm/m; Surface finish: Ra ≤ 0.8 μm
Test Method
Dimensional inspection with micrometers and CMM; Load testing per ISO 7500-1; Fatigue testing with cyclic loading; Corrosion resistance per ASTM B117

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

What is the primary function of a pusher rod in a stopper pusher assembly?

The pusher rod transmits force from an actuator to a stopper or workpiece, enabling controlled linear pushing, positioning, or ejection in automated machinery.

How do I select the right material for a pusher rod?

Choose based on application: carbon steel for strength and cost, stainless steel for corrosion resistance, aluminum for lightweight needs, and consider surface treatments like chrome plating for wear resistance.

What maintenance does a pusher rod require?

Regular lubrication of sliding surfaces, inspection for wear or bending, and cleaning to prevent contamination that could cause jamming or increased friction.

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.

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