Lower Die: Width 100-1000 mm, Length 100-1500 mm

Component Specifications

Definition

In industrial manufacturing, the lower die is the fixed half of a die set mounted on the press bed or bolster plate. It contains cavities, cutting edges, or forming surfaces that work in conjunction with the upper die to perform operations such as blanking, piercing, bending, drawing, or coining on sheet metal, plastics, or other materials. The lower die provides precise alignment through guide pins or bushings and often includes features for material feeding, part ejection, and scrap removal.

Working Principle

The lower die remains stationary while the upper die descends under press force. Material placed between them is shaped through mechanical deformation, shearing, or compression. The die's geometry determines the final part shape, with clearance between upper and lower cutting edges ensuring clean separation in shearing operations.

Materials

Tool steel (D2, A2, M2), carbide inserts, hardened steel (HRC 58-62), sometimes with wear-resistant coatings (TiN, TiCN)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	100-1000 mm
Height	50-300 mm
Length	100-1500 mm
Weight	10-500 kg
Hardness	58-62 HRC
Surface Finish	Ra 0.4-1.6 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 9181, DIN 9830

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.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear and tear from continuous use
Misalignment causing part defects
Material fatigue leading to cracking
Improper clearance causing burrs or tool damage

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and premature wear
Mitigation: Implement automated lubrication systems and regular maintenance schedules

Trigger: Material thickness variation
Failure: Inconsistent part quality and tool damage
Mitigation: Use material thickness sensors and implement SPC controls

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.02 mm for precision dies, ±0.05 mm for standard dies

Test Method

Coordinate measuring machine (CMM) inspection, surface roughness testing, hardness testing

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 Lower Die

Manufacturer profiles associated with Lower Die.

Sourcing Lower Die 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

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 difference between lower die and upper die?

The lower die is stationary and mounted on the press bed, while the upper die moves with the press ram. The lower die typically contains die cavities and cutting edges, while the upper die carries punches and forming tools.

How often should lower dies be maintained?

Lower dies require regular inspection every 10,000-50,000 cycles depending on material hardness and production conditions. Maintenance includes cleaning, sharpening cutting edges, checking alignment, and replacing worn components.

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.

Lower Die