Upper Die: Weight Capacity Up to 5000 kg

Component Specifications

Definition

The Upper Die is a precision-engineered component that mounts to the press ram in a die set, working in conjunction with the lower die to perform cutting, bending, or forming operations on metal workpieces through controlled mechanical force.

Working Principle

The Upper Die operates by descending under press force to engage with the lower die, applying compressive stress to deform or cut the workpiece material according to the die cavity geometry, then retracting to allow part ejection.

Materials

Tool steel (D2, A2, or M2 grades), carbide inserts for wear surfaces, heat-treated to 58-62 HRC for durability.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Surface Finish	Ra 0.4-0.8 μm
Weight Capacity	Up to 5000 kg
Operating Pressure	100-2000 tons
Guide Post Diameter	40-100 mm
Dimensional Tolerance	±0.02 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

DIN 9835

Parent Products

This component is used in the following industrial products

Die Set

A precision assembly of matched upper and lower dies used in forging presses to shape metal workpieces under high pressure.

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Engineering Analysis

Risks & Mitigation

Tool wear leading to dimensional inaccuracy
Misalignment causing part defects
Fatigue failure under cyclic loading

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and premature wear
Mitigation: Implement automated lubrication system with monitoring

Trigger: Material hardness mismatch
Failure: Cracking or chipping of die surfaces
Mitigation: Use proper tool steel grade matched to workpiece material

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO 2768-mK for general dimensions, ISO 8015 for geometrical tolerancing

Test Method

CMM measurement per ISO 10360, 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 Upper Die

Manufacturer profiles associated with Upper Die.

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Frequently Asked Questions

What is the difference between Upper Die and Lower Die?

The Upper Die attaches to the press ram and moves downward, while the Lower Die remains stationary on the press bed; together they form the complete die set for metalworking operations.

How often should Upper Dies be maintained?

Regular inspection every 50,000 cycles, with preventive maintenance including lubrication and wear checking; complete refurbishment recommended after 500,000 cycles depending on material and operation severity.

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.

Upper Die