Industry-Verified Manufacturing Data (2026)

Bending Arm Frame

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Bending Arm Frame used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Bending Arm Frame is characterized by the integration of Base Plate and Vertical Supports. In industrial production environments, manufacturers listed on CNFX commonly emphasize Structural steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The structural support component of a bending arm assembly that provides rigidity and mounting points for other parts.

Product Specifications

Technical details and manufacturing context for Bending Arm Frame

Definition
The Bending Arm Frame is the foundational structural element within a Bending Arm Assembly, serving as the main chassis that supports and aligns all other components. It provides the necessary rigidity to withstand bending forces while offering precise mounting locations for the bending mechanism, hydraulic/pneumatic systems, and control components.
Working Principle
The frame acts as a stationary or semi-stationary structural foundation that absorbs and distributes the reaction forces generated during the bending operation. It maintains geometric stability while other components (like the bending arm, dies, and actuators) perform the actual metal forming work.
Common Materials
Structural steel, Cast iron
Technical Parameters
  • Overall dimensions (length × width × height) and mounting hole patterns (mm) Standard Spec
Components / BOM
  • Base Plate
    Primary load-bearing surface that distributes forces to the foundation
    Material: Structural steel
  • Vertical Supports
    Provide height and vertical stability to the bending mechanism
    Material: Structural steel
  • Cross Braces
    Add torsional rigidity and prevent frame deformation under load
    Material: Structural steel
  • Mounting Brackets
    Provide attachment points for hydraulic cylinders, guides, and other components
    Material: Steel plate
Engineering Reasoning
0-1500 N·m bending moment, -40°C to 120°C temperature
Yield strength exceeded at 250 MPa stress concentration factor of 2.5 at mounting holes
Design Rationale: Stress concentration at mounting holes exceeding material yield strength (ASTM A36 steel, σ_y = 250 MPa) due to cyclic loading at 10⁶ cycles (S-N curve fatigue limit)
Risk Mitigation (FMEA)
Trigger Cyclic bending moment exceeding 1500 N·m at 5 Hz frequency
Mode: Fatigue crack initiation at mounting hole radius (0.5 mm)
Strategy: Increase mounting hole radius to 2.0 mm with shot peening surface treatment (Ra 0.8 μm)
Trigger Thermal expansion differential of 12×10⁻⁶/°C between frame and mounting bolts
Mode: Bolt preload loss exceeding 30% at 120°C operating temperature
Strategy: Use matched coefficient of thermal expansion materials (17×10⁻⁶/°C Invar 36 inserts)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Bending Arm Frame.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 MPa (static load)
other spec: Max dynamic load: 5 kN, Vibration tolerance: 5-200 Hz at 0.5g max
temperature: -40°C to 150°C
Media Compatibility
✓ Hydraulic fluid systems ✓ Industrial lubricants ✓ Dry inert gas environments
Unsuitable: High-concentration abrasive slurry (>15% solids by weight)
Sizing Data Required
  • Maximum bending moment (Nm)
  • Required mounting interface dimensions (mm)
  • Environmental exposure class (e.g., ISO 12944 C4)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic loading from repeated bending operations leading to stress concentration at weld joints or geometric transitions
Bearing seizure
Cause: Inadequate lubrication or contamination ingress causing excessive friction and heat buildup in pivot points
Maintenance Indicators
  • Visible cracks or deformation at weld joints or high-stress areas
  • Unusual grinding or squealing noises during operation indicating bearing wear or misalignment
Engineering Tips
  • Implement regular non-destructive testing (ultrasonic or magnetic particle) to detect early-stage fatigue cracks before propagation
  • Establish a precision lubrication program with contamination control and proper regreasing intervals for all pivot bearings

Compliance & Manufacturing Standards

Reference Standards
ISO 2768-1: General tolerances for linear and angular dimensions ANSI B4.1: Preferred Limits and Fits for Cylindrical Parts DIN 6930: Cold bending of steel sections - Tolerances
Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Frame flatness: 0.1mm per meter
Quality Inspection
  • Dye Penetrant Test for surface cracks
  • Coordinate Measuring Machine (CMM) verification of critical dimensions

Factories Producing Bending Arm Frame

Verified manufacturers with capability to produce this product in China

✓ 95% Supplier Capability Match Found

P Project Engineer from Brazil Feb 10, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
S Sourcing Manager from Canada Feb 07, 2026
★★★★★
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Bending Arm Frame meets all ISO standards."
Technical Specifications Verified
P Procurement Specialist from United States Feb 04, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Bending Arm Frame arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

13 sourcing managers are analyzing this specification now. Last inquiry for Bending Arm Frame from Thailand (27m ago).

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Frequently Asked Questions

What materials are used in the bending arm frame construction?

Our bending arm frames are constructed from high-grade structural steel or cast iron, providing exceptional durability and rigidity for industrial machinery applications.

What components are included in the bending arm frame assembly?

Each bending arm frame includes a base plate, vertical supports, cross braces, and mounting brackets - all designed for easy integration into bending arm systems.

How does the bending arm frame improve machinery performance?

The frame provides critical structural support that enhances stability, reduces vibration, and ensures precise alignment of bending arm components during operation.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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