INDUSTRY COMPONENT

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.

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Component Specifications

Definition
The main frame of a hydraulic press is the foundational structural assembly that supports all other components, including the cylinder, platen, and guiding systems. It is engineered to absorb and distribute the immense forces generated during pressing operations, ensuring dimensional accuracy and operational safety. Typically constructed as a C-frame or four-column design, it maintains alignment under load and prevents deflection that could compromise part quality.
Working Principle
The main frame operates on the principle of structural integrity and force distribution. When hydraulic pressure is applied to the cylinder, it generates compressive force that is transmitted through the platen to the workpiece. The frame's design (using beams, columns, and reinforcements) converts this force into internal stresses (tension, compression, shear) that are safely contained within its structure, preventing deformation and maintaining precise tool alignment throughout the stroke cycle.
Materials
High-strength low-alloy steel (HSLA) such as ASTM A572 Grade 50 or equivalent; Yield strength: ≥345 MPa, Tensile strength: ≥450 MPa; Often fabricated from welded steel plates (20-100mm thickness) with stress-relief annealing; May include reinforced sections with steel castings (e.g., ASTM A27) at high-stress points.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Weight2,000-50,000 kg
Frame TypeC-Frame or Four-Column
Platen Size500x500 mm to 3000x2000 mm
Daylight Opening400-2000 mm
Deflection Tolerance<0.1 mm per meter under full load
Maximum Load Capacity100-10,000 tons

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 12100, ISO 13849-1, DIN 5510, DIN 8584

Parent Products

This component is used in the following industrial products

Hydraulic Press

Industrial machine using hydraulic pressure to compress, form, or assemble materials

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Ceramic Tile Press

An industrial hydraulic press machine used in ceramic tile manufacturing plants to compress ceramic powder mixtures into tile blanks.

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High-Speed Progressive Stamping Press

Automated press for sequential metal stamping operations in continuous strip feeding

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Engineering Analysis

Risks & Mitigation
  • Structural fatigue leading to crack propagation
  • Frame deflection causing misalignment
  • Weld failure at stress concentrations
  • Corrosion in harsh environments
FMEA Triads
Trigger: Cyclic loading exceeding fatigue limits
Failure: Crack formation in welded joints or high-stress areas
Mitigation: Implement regular non-destructive testing (ultrasonic/magnetic particle), design with fatigue-resistant details, use stress-relief heat treatment
Trigger: Improper foundation or mounting
Failure: Excessive frame deflection and misalignment
Mitigation: Ensure proper foundation design per load specifications, use precision leveling during installation, monitor deflection with strain gauges

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Frame parallelism: ±0.05 mm/m, Platen flatness: ±0.1 mm, Column alignment: ±0.02 mm/m
Test Method
Laser alignment for geometric accuracy, strain gauge testing for stress distribution, ultrasonic testing for weld integrity, static load testing to 150% of rated capacity

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 Main Frame

Manufacturer profiles associated with Main Frame.

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Seal Groove
Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.
Core Vent
Core vent is a specialized component in casting cores that facilitates gas escape during metal pouring to prevent defects.

Frequently Asked Questions

What is the difference between C-frame and four-column main frames?

C-frame designs offer three-sided accessibility for easier loading/unloading but have lower rigidity, suitable for lower tonnage presses. Four-column frames provide superior stability and alignment for high-tonnage applications but require more floor space.

How often should a hydraulic press main frame be inspected?

Visual inspections should be conducted daily, with detailed structural inspections (including crack testing and deflection measurements) performed annually or every 10,000 operating hours, following manufacturer guidelines and ISO 12100 standards.

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.

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