Ram: Stroke Length 50-500 mm, Maximum Force 50-2000 kN

Component Specifications

Definition

The ram is a critical linear motion component within a stamping module, designed to transfer mechanical force from the press drive system to the tooling assembly. It operates through a guided reciprocating motion to execute precise forming, blanking, or piercing operations on metal workpieces with controlled speed, stroke length, and tonnage.

Working Principle

The ram converts rotational energy from the press crankshaft or servo motor into linear motion via a connecting rod or direct drive mechanism. This controlled vertical movement applies compressive force through the upper die onto the workpiece positioned on the lower die, achieving plastic deformation or separation of the material according to the tooling geometry.

Materials

Typically forged alloy steel (e.g., AISI 4140, 4340) or high-strength carbon steel, heat-treated to 40-50 HRC for core toughness with surface hardening (induction or nitriding) to 55-60 HRC for wear resistance. Some applications use ductile iron or specialized tool steels for specific wear or corrosion requirements.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Maximum Force	50-2000 kN
Stroke Length	50-500 mm
Guiding System	Precision linear bearings or box-type gibs
Surface Finish	Ra 0.4-0.8 μm on sliding surfaces
Parallelism Tolerance	≤0.02 mm/300 mm
Perpendicularity Tolerance	≤0.03 mm/300 mm

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 12100, ISO 13849-1, DIN 5510, DIN 8584

Parent Products

This component is used in the following industrial products

Stamping Module

A specialized component within an automated production line that performs metal stamping operations to shape or cut materials.

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Engineering Analysis

Risks & Mitigation

Misalignment causing tool damage
Fatigue failure under cyclic loading
Wear leading to loss of precision
Overloading beyond rated capacity
Lubrication failure increasing friction

FMEA Triads

Trigger: Inadequate lubrication or contamination
Failure: Increased friction, scoring on guiding surfaces, binding
Mitigation: Implement automated lubrication systems, use sealed guides, establish regular maintenance schedules

Trigger: Misalignment during installation or operation
Failure: Uneven tool loading, premature bearing failure, part quality issues
Mitigation: Use precision alignment tools during installation, implement regular parallelism checks, install monitoring sensors

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerances per ISO 2768-m, geometric tolerances per ISO 1101

Test Method

Dimensional verification with CMM, hardness testing per ISO 6508, surface roughness measurement per ISO 4287, load testing with strain gauges

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

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

Manufacturers of Ram

Manufacturer profiles associated with Ram.

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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.

Frequently Asked Questions

What maintenance is required for stamping module rams?

Regular lubrication of guiding surfaces, inspection for wear or scoring, checking alignment and parallelism, monitoring for abnormal noise or vibration, and periodic replacement of seals or bearings according to operating hours.

How does ram precision affect stamping quality?

Precision in ram motion directly impacts part dimensional accuracy, tooling life, and process consistency. Poor alignment or excessive play causes uneven loading, premature tool wear, part defects like burrs or misalignment, and reduced production efficiency.

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.

Ram