Clutch-Brake System for Stamping Presses

Product Specifications

Technical details and manufacturing context for Clutch-Brake System

Definition

The clutch-brake system is an essential safety and control component of a precision mechanical stamping press. It integrates both clutch engagement and brake disengagement functions to control the press's flywheel and ram motion. This system allows operators to start the press cycle safely, stop it immediately in emergencies, and position the ram accurately for tool changes or maintenance. It ensures operator safety by preventing unintended press operation and enables precise control over the stamping process for consistent part quality. The system operates through pneumatic, hydraulic, or mechanical actuation. When engaged, the clutch connects the flywheel to the crankshaft, transferring rotational energy to move the ram downward for stamping. When disengaged or during emergency stops, the brake immediately applies friction to halt the crankshaft and ram motion. Modern systems often use fail-safe designs where loss of air pressure or power automatically engages the brake for maximum safety. Typical specifications for such systems include rated torque from 100 to 5000 N·m, operating pressure from 1.0 to 1.6 MPa, response time from 0.05 to 0.15 seconds, positioning accuracy of ±0.05 mm, supply voltage of 24 V DC ±10%, operating temperature range of -40 to 85 °C, ingress protection ratings from IP54 to IP65, housing material HT250 cast iron, and weight from 50 to 500 kg. These values are reference ranges and must be verified for the specific press model and application. Standards such as IEC 61131-2, IEC 60529, and GB/T 9439 are referenced for procurement and verification. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The system operates through pneumatic, hydraulic, or mechanical actuation. When engaged, the clutch connects the flywheel to the crankshaft, transferring rotational energy to move the ram downward for stamping. When disengaged or during emergency stops, the brake immediately applies friction to halt the crankshaft and ram motion. Modern systems often use fail-safe designs where loss of air pressure or power automatically engages the brake for maximum safety.

Common Materials

High-strength alloy steel, Friction materials (asbestos-free), Cast iron housings

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Torque	100–5000 N·m	Select based on press tonnage and required stopping time.
Response Time	0.05–0.15 s	Faster response improves ram positioning accuracy.
Positioning Accuracy	±0.05 mm	Critical for precision stamping operations.
Supply Voltage	24 ±10% V DC	For solenoid valves and control electronics.IEC 61131-2
Operating Temperature	-40–85 °C	Outside this range, seals and lubricants may fail.
Ingress Protection	IP54–IP65	Higher rating needed in dusty or wet environments.IEC 60529
Material	HT250	Cast iron housing for durability and heat dissipation.GB/T 9439
Weight	50–500 kg	Affects installation and structural support requirements.

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

Clutch Disc Part
Transmits rotational force from flywheel to crankshaft when engaged

Material: High-friction composite
Brake Lining Part
Creates friction to stop crankshaft rotation when brake is applied

Material: Asbestos-free friction material
Actuation Cylinder
Pneumatic or hydraulic cylinder that engages/disengages clutch and brake

Material: Steel with chrome plating
Control Valve
Regulates air/oil flow to actuation cylinder based on operator inputs

Material: Brass or aluminum alloy

Manufacturers of Clutch-Brake System

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Frequently Asked Questions

What is the primary function of a clutch-brake system in a stamping press?

The clutch-brake system controls the engagement and disengagement of the press's flywheel and ram. It allows safe starting, immediate stopping in emergencies, and precise positioning of the ram for tool changes or maintenance.

What are typical operating pressure ranges for these systems?

Typical operating pressure ranges from 1.0 to 1.6 MPa. Always verify the exact requirement for your specific model.

How does a fail-safe design enhance safety?

In a fail-safe design, loss of air pressure or power automatically engages the brake, halting the ram. This ensures that the press stops safely even in the event of a system failure.

What standards are relevant for clutch-brake systems?

Relevant standards include IEC 61131-2 for supply voltage, IEC 60529 for ingress protection, and GB/T 9439 for housing material. These are reference standards; confirm compliance with the manufacturer.

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 hydraulic pressure, Max 15 bar pneumatic pressure
other spec:	Max torque: 500 Nm, Response time: <50 ms, Duty cycle: 60% max continuous
temperature:	-20°C to +80°C (operating), -40°C to +100°C (storage)

Clutch-Brake System

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