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Composite Compression Press | PCM and SMC

A multi-cylinder hydraulic compression press with active platen leveling for specified composite tooling and solid preforms.

3,000-Ton High-Tonnage SMC/PCM Chassis Part Molding

Precision Active-Leveling Compression for Structural Leaf Springs

A multi-cylinder hydraulic compression press with active platen leveling for specified composite tooling and solid preforms.

A multi-cylinder hydraulic compression press with active platen leveling for specified composite tooling and solid preforms.

Press frame, hydraulic power/accumulator, platen-leveling feedback, heating and controls. Prepreg/SMC charge, molds, handling and part qualification are separately agreed.

Nominal pressing force is 30,000 kN, approximately 3,059 metric tonnes-force. Hydraulic-system pressure, tool cavity pressure and platen leveling are separate quantities. Spring weight and fatigue figures describe the specified finished-part comparison and test.

Concept illustration: Generated concept illustration for process discussion; not a photograph of the specified machine, a customer facility or a delivered project.

Precision Active-Leveling Compression for Structural Leaf Springs

Material Flow and Working Principle

Automated Charge Stacking & Preheating

High-strength continuous glass fiber epoxy prepreg sheets (PCM) or high-fiber vinyl SMC blanks are cut by ultrasonic knives and robotically stacked into a parabolic charge pack.

Fast Robot Placement in Heated Tooling

A specialized pneumatic needle gripper transfers the thick charge pack into the lower tool cavity heated to 150°C ± 1°C inside the 3,000-ton press.

High-Speed Closing & Active Micro-Leveling

The press descends at 400 mm/s; upon contact, four corner leveling cylinders engage, ramping to full 3,000-ton force in 1.8 seconds while holding parallelism within ±0.02 mm.

Isothermal High-Pressure Consolidation

The tool maintains continuous 12.0 MPa cavity pressure for 180 seconds, ensuring dense resin flow into parabolic tapers and crosslinking the matrix without internal voids.

Automated Extraction & Deflashing

Platen cylinders de-pressurize and open smoothly; hydraulic bottom ejector pins elevate the hot leaf spring for robotic extraction and robotic edge-milling.

Configuration data

Model and Technical Parameters

Supplied HF-PCM3000-AL configuration references for the selected material, tooling and operating conditions. Nominal pressing force is 30,000 kN, approximately 3,059 metric tonnes-force. Hydraulic-system pressure, tool cavity pressure and platen leveling are separate quantities. Spring weight and fatigue figures describe the specified finished-part comparison and test.

Technical ParameterHF-PCM3000-AL
ComponentsSolid preform or prepreg tooling; no liquid proportioning
Power Supply380V, 3-Phase, 50Hz (Custom 440V/480V 60Hz optional)
Working Pressure25.0 to 31.5 MPa (Main hydraulic cylinder system)
Weight145,000 kg (Complete press frame, cylinders, and hydraulics)
Dimensions (L×W×H)6200 mm x 4500 mm x 7800 mm (Machine bed footprint & height)
Active Leveling Precision≤ 0.02 mm (Under 30,000 kN off-center load); Optical linear encoders on 4 corners; configuration-specific reference
Full Pressurization Time≤ 1.8 seconds (Ramp to 3,000-ton clamp); High-speed accumulator assist; configuration-specific reference
Platen Fast Downward SpeedUp to 400 mm/s (Servo gravity fast approach); Platen descent stroke; configuration-specific reference
Leaf Spring Fatigue Durability≥ 1,000,000 Cycles (Full load bench test); Automotive leaf spring test rig; configuration-specific reference
Nominal pressing forceNominal Pressing Force: 30,000 kN (approximately 3,059 metric tonnes-force); configuration-specific reference
Supplied preform fiber fraction60% to 70% Fiber Content by weight (Prepreg formulation); configuration-specific reference
Active platen leveling precision±0.02 mm (4-Corner active dynamic leveling precision); configuration-specific reference
Hydraulic oil reservoirHydraulic oil reservoir: 4,500 L (Mineral hydraulic fluid); configuration-specific reference
Equipment configuration

Key Equipment Features

Press frame, hydraulic power/accumulator, platen-leveling feedback, heating and controls. Prepreg/SMC charge, molds, handling and part qualification are separately agreed.

±0.02 mm 4-Corner Active Leveling

Supplied configuration reference: Four independent digital servo cylinders correct platen tilt dynamically under severe off-center parabolic spring charges. Actual capability requires material and tooling validation.

1.8-Second Fast Pressurization

Supplied configuration reference: Servo variable pumps and accumulators ramp to 3,000 tons in 1.8 seconds, preventing fast-curing epoxy pre-gel defects. Actual capability requires material and tooling validation.

120 kg Chassis Weight Reduction

Supplied configuration reference: Replaces multi-leaf steel spring packs with lightweight composite springs, shedding 120 kg per truck. Actual capability requires material and tooling validation.

1 Million Fatigue Cycle Lifespan

The supplied 1,000,000-cycle reference is a finished-spring bench result for the specified material, geometry and loading; it is not a press rating or general fatigue-life guarantee.

Planning questions

Frequently Asked Questions

Why is ±0.02 mm active leveling critical when molding parabolic leaf springs?
Asymmetric charges exert uneven tipping forces; precise leveling ensures uniform thickness to prevent delamination. Confirm the applicable material, tooling, test method and original records for the specified configuration.
How does 1.8-second fast pressurization benefit fast-curing epoxy prepregs?
Fast pressure ramping consolidates prepreg plies before heat triggers gelation, preventing uncompressed voids. Confirm the applicable material, tooling, test method and original records for the specified configuration.
What enables composite leaf springs to survive 1 million fatigue cycles?
The supplied million-cycle reference concerns a finished spring under its stated load and test procedure. Consolidation and platen leveling support process control; internal voids and fatigue life require separate part inspection and testing.
Can this press also mold carbon fiber battery covers and chassis panels?
Yes, high tonnage (3,000 tons) and active leveling support large-area SMC/PCM panels up to 3.5 m². Confirm the applicable material, tooling, test method and original records for the specified configuration.