Editorial Technical Reference

Industrial Robot Arm

This page explains how Industrial Robot Arm is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A programmable mechanical manipulator used for automated handling, welding, assembly, or processing tasks within metal fabrication systems.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Industrial Robot Arm

Definition
The industrial robot arm is a multi-axis robotic manipulator that serves as the primary motion component within an automated metal fabrication cell system. It is responsible for precise positioning, material transfer, tool manipulation, and process execution in metal cutting, welding, bending, and assembly operations. The arm is typically constructed from aluminum alloy, steel, or carbon fiber composite, offering a balance of strength, stiffness, and weight reduction. Its articulated joints are driven by servo motors, enabling smooth and controlled movement across six axes for full flexibility. The robot arm is programmed via a programmable logic controller (PLC) or dedicated robot controller, which executes pre-programmed paths and sequences based on CAD/CAM data. This allows for repeatable, high-precision movements essential for consistent quality in metal fabrication. Key parameters include a rated payload of 5–50 kg (with models above 50 kg requiring heavy-duty construction), a reach of 1.0–2.5 meters, and a repeatability of ±0.05 mm per ISO 9283. Maximum speed ranges from 2 to 5 m/s, and power consumption is 3–10 kW. The arm operates on a 380–480 V AC, 3-phase supply (50/60 Hz) per IEC 60038, within an ambient temperature range of -10°C to 45°C (heating required below -10°C). Protection class ranges from IP54 to IP65 per IEC 60529, with IP65 recommended for dusty environments. The arm weighs 150–500 kg, affecting floor loading, and can be mounted on the floor, wall, or ceiling for flexible cell layouts. These specifications are directory reference ranges; actual values must be confirmed with the legal manufacturer or supplier for the specific model and application.
Working Principle
The robot arm operates through servo motors that drive articulated joints, controlled by a programmable logic controller (PLC) or robot controller. The controller executes pre-programmed paths and sequences based on CAD/CAM data, enabling repeatable, high-precision movements. Each joint's position is monitored by encoders, and the controller adjusts motor commands to achieve the desired trajectory. This closed-loop control ensures accuracy and repeatability, critical for tasks like welding and assembly. The arm's end effector can be changed to suit different operations, such as grippers for handling or welding torches for joining.
Common Materials
Aluminum alloy, Steel, Carbon fiber composite
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Payload5–50 kgAbove 50 kg requires heavy-duty modelISO 9283
Reach1.0–2.5 mDetermines cell footprint
Repeatability±0.05 mmCritical for welding and assemblyISO 9283
Number of Axes66-axis for full flexibility
Maximum Speed2–5 m/sHigher speed reduces cycle time
Power Consumption3–10 kWAffects energy costs
Supply Voltage380–480 V AC3-phase, 50/60 HzIEC 60038
Operating Temperature-10–45 °CBelow -10°C requires heating
Protection ClassIP54–IP65IP65 for dusty environmentsIEC 60529
Weight150–500 kgAffects floor loading
Mounting PositionFloor/Wall/CeilingFlexible mounting options

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
  • End Effector Mount
    Interface for attaching welding torches, grippers, or other tools
    Material: Steel
  • Servo Motors
    Provide precise rotational movement to each joint
    Material: Copper windings, steel housing
  • Reduction Gears
    Increase torque and precision of joint movements
    Material: Hardened steel
  • Arm Links Part
    Structural elements connecting joints and providing reach
    Material: Aluminum alloy
  • Robot Controller
    Runs the programmed paths and closes the loop on the joint encoders.
  • Joint Encoders
    Report each joint angle; the arm's repeatability figure is read off them.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
reach: 0.5-3.5 m (model dependent)
pressure: N/A (mechanical system, not fluid handling)
ip rating: IP54-IP67 (model dependent)
temperature: 0°C to 50°C (operating), -10°C to 60°C (storage)
repeatability: ±0.02-0.1 mm (model dependent)
payload capacity: 5-500 kg (model dependent)
Media Compatibility
✓ Metal components (steel, aluminum, etc.) ✓ Plastic injection molded parts ✓ Welding applications (MIG/TIG/spot)
Unsuitable: Explosive atmospheres (ATEX zones) without special certification
Sizing Data Required
  • Maximum payload requirement (kg)
  • Required working envelope/reach (m)
  • Required positioning accuracy/repeatability (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Gearbox backlash and wear
Cause: Inadequate lubrication, contamination ingress, or cyclic loading exceeding design limits leading to pitting, spalling, and increased clearance in reduction gears.
Encoder or resolver signal drift/failure
Cause: Electrical noise, thermal stress on components, mechanical misalignment, or contamination disrupting precise position feedback, causing positioning errors or uncontrolled motion.
Maintenance Indicators
  • Unusual grinding, clicking, or whining noises from joints or gearboxes during movement
  • Erratic or jerky motion, position drift, or failure to reach programmed points despite normal power and control signals
Engineering Tips
  • Implement condition-based lubrication with high-purity, manufacturer-specified greases and monitor particle counts in gearbox oil to prevent abrasive wear.
  • Establish regular thermal imaging inspections of motors and drives to detect overheating early, and ensure electrical grounding/shielding integrity to protect sensitive feedback devices.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 10218-1:2011 - Robots and robotic devices - Safety requirements for industrial robots ANSI/RIA R15.06-2012 - Industrial Robots and Robot Systems - Safety Requirements CE Marking - Compliance with EU Machinery Directive 2006/42/EC

Quoted from the published standard.

Manufacturing Precision
  • Repeatability: +/-0.02mm
  • Positional accuracy: +/-0.05mm
Quality Inspection
  • Performance verification test (ISO 9283)
  • Functional safety test (IEC 61508 SIL2)

Manufacturers of Industrial Robot Arm

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Qingdao Jiujin Machinery Co., Ltd.
Heilongjiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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.

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Frequently Asked Questions

What is the rated payload of this robot arm?

The rated payload is 5–50 kg, as listed in the directory. Models above 50 kg require a heavy-duty design. Always confirm the exact payload for your specific model with the manufacturer.

What is the repeatability of the robot arm?

The repeatability is ±0.05 mm, tested according to ISO 9283. This indicates the arm's ability to return to a programmed position. Verify this value for the specific model, as it may vary.

What power supply is required?

The robot arm requires a 380–480 V AC, 3-phase supply at 50/60 Hz, per IEC 60038. Check your facility's power availability and consult the manufacturer for exact requirements.

Can the robot arm be mounted in different positions?

Yes, the arm can be mounted on the floor, wall, or ceiling, offering flexibility in cell layout. However, mounting position affects reach and payload, so confirm with the manufacturer for your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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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