Scrap Cutter for Progressive Stamping Presses - Specifications and Selection

Product Specifications

Technical details and manufacturing context for Scrap Cutter

Definition

The scrap cutter is an essential component of high-speed progressive stamping presses, designed to efficiently separate waste material (scrap) from the finished stamped parts as they move through the press line. It operates in synchronization with the press cycle to ensure clean cuts without interrupting production flow, maintaining dimensional accuracy of parts and preventing scrap accumulation that could damage dies or affect part quality. The cutter typically consists of a stationary blade and a moving blade actuated by the press ram or a separate hydraulic/pneumatic system. As the stamped strip advances through the die, the scrap cutter engages at predetermined positions to shear the connecting scrap skeleton or trim excess material. Timing is precisely controlled to match the press stroke, ensuring cuts occur during non-forming phases of the cycle. The scrap cutter is available in various configurations to suit different press sizes and stamping applications. Key parameters include cutting capacity (sheet thickness 0.5–3.0 mm), cutting speed (30–120 strokes/min), cutting force (10–50 kN), blade clearance (0.02–0.10 mm), blade material (SKD11 per JIS G4404), operating pressure (1.0–1.6 MPa), operating temperature (-40–85 °C), IP rating (IP54–IP65 per IEC 60529), weight (15–60 kg), and dimensions (300×200×150 to 600×400×300 mm). These values are reference ranges and must be verified for the specific model and application. The scrap cutter is typically made from tool steel or carbide. It is a component used in machinery and equipment manufacturing, specifically in stamping presses. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The scrap cutter operates with a stationary blade and a moving blade. The moving blade is actuated by the press ram or a separate hydraulic/pneumatic system. As the stamped strip advances, the cutter engages at predetermined positions to shear the scrap skeleton. Timing is synchronized with the press stroke to cut during non-forming phases. The blade clearance is set to 0.02–0.10 mm for clean cuts. The cutting force ranges from 10 to 50 kN, depending on material strength. The cutter operates at speeds of 30–120 strokes per minute. Proper maintenance includes checking blade wear and clearance. Failure to maintain can cause burrs or damage to the die.

Common Materials

Tool steel, Carbide

Technical Parameters

Parameter	Typical range	Notes & selection driver
Cutting Capacity (Sheet Thickness)	0.5–3.0 mm	Max thickness of scrap material that can be cut.
Cutting Speed	30–120 strokes/min	Number of cuts per minute; higher speeds increase productivity.
Cutting Force	10–50 kN	Force required to shear the scrap; depends on material strength.
Blade Clearance	0.02–0.10 mm	Optimal clearance for clean cuts; too large causes burrs.
Blade Material	SKD11	High wear resistance; alternative: D2.JIS G4404
Operating Temperature	-40–85 °C	Non-condensing; avoid frost below -40°C.
IP Rating	IP54–IP65	Protection against dust and water jets.IEC 60529
Weight	15–60 kg	Depends on size and force rating.
Dimensions (L×W×H)	300×200×150–600×400×300 mm	Overall footprint; varies with model.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Upper Blade
Moving cutting edge attached to the press ram or actuator

Material: Tool steel
Lower Blade
Stationary cutting edge mounted on the die or press bed

Material: Tool steel
Blade Holder
Secures blades in precise alignment and provides mounting interface

Material: Alloy steel
Actuation Mechanism
Hydraulic, pneumatic, or mechanical system that drives the cutting motion

Material: Steel components with hydraulic/pneumatic elements

Manufacturers of Scrap Cutter

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Frequently Asked Questions

What is the cutting capacity of a scrap cutter?

The cutting capacity, in terms of sheet thickness, is typically 0.5 to 3.0 mm. This is a reference range; the actual capacity depends on the specific model and material strength. Always verify with the manufacturer.

How is the scrap cutter actuated?

The moving blade can be actuated by the press ram or a separate hydraulic/pneumatic system. The actuation method depends on the press design and the specific scrap cutter model.

What blade material is used?

The blade material is typically SKD11, a high-wear-resistant tool steel, per JIS G4404. Other materials like carbide may also be used. Confirm the exact material with the supplier.

What is the recommended blade clearance?

The recommended blade clearance is 0.02 to 0.10 mm. Too large a clearance can cause burrs, while too small may cause excessive wear. Adjust according to material and application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Max 10 bar (145 psi) hydraulic system pressure
other spec:	Max scrap thickness: 3 mm (0.118 in), Min scrap width: 5 mm (0.197 in), Cutting frequency: Up to 1200 strokes/min
temperature:	-40°C to +85°C

Scrap Cutter

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards