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
  • Weight 2,000-50,000 kg
  • Frame Type C-Frame or Four-Column
  • Platen Size 500x500 mm to 3000x2000 mm
  • Daylight Opening 400-2000 mm
  • Deflection Tolerance <0.1 mm per meter under full load
  • Maximum Load Capacity 100-10,000 tons
Standards
ISO 12100, ISO 13849-1, DIN 5510, DIN 8584

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Main Frame.

hydraulic press main frame industrial press structure machine frame components metal forming equipment press frame design C-frame press four-column press Main Frame Main Frame in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Hydraulic Press

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

View Product Details

Ceramic Tile Press

Hydraulic press for forming ceramic tiles from clay powder

View Product Details

High-Speed Progressive Stamping Press

Automated press for sequential metal stamping operations in continuous strip feeding

View Product Details

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

Interchangeable Parts

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

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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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.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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