Heavy Duty Robotic Arm 500 kg | CHAIFU SF500-C3100

2026-10-10

Heavy industrial handling requires more than lifting capacity. The robot must also match the dimensions of the workpiece, the weight of the gripper, the required movement, and the available production space.

The CHAIFU SF500-C3100 heavy duty robotic arm offers a 500 kg payload capacity and 3273.6 mm reach. Part of the ALPHTIC series, this six-axis industrial robot provides a platform for evaluating heavy material handling, machine loading and unloading, and palletizing applications. Final suitability depends on the complete load configuration and operating requirements. 

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SF500-C3100 Heavy Duty Robotic Arm Specifications

SpecificationSF500-C3100

Product name

Heavy Duty Robotic Arm

Brand

CHAIFU

Series

ALPHTIC

Robot structure

Vertically articulated

Number of axes

6

Payload capacity

500 kg

Reach

3273.6 mm

Mounting position

Floor

These parameters provide an initial selection reference. Confirm the current technical documentation, allowable loading conditions, and final supplied configuration before completing your equipment specification.

Understanding the 500 kg Payload Capacity

A 500 kg payload rating should not be interpreted as permission to lift a 500 kg workpiece with an additional gripper.

For robot selection, include the workpiece, gripper, mounting adapter, and other wrist-mounted equipment in the load assessment. The position of the combined center of gravity and the rotational inertia of the load also matter. A long or offset component can present a different loading condition from a compact component of the same mass. 

Consider this illustrative calculation:

380 kg workpiece + 85 kg gripper + 15 kg adapter = 480 kg total wrist load

The total is below the stated 500 kg capacity, but this calculation alone does not approve the application. Ask CHAIFU to check the complete assembly against the SF500-C3100's allowable load conditions, including its center of gravity, wrist loading, and intended motion.

For an initial assessment, provide a drawing of the part and a preliminary gripper concept rather than submitting workpiece weight alone.

Planning Around a 3273.6 mm Reach

The SF500-C3100 has a stated reach of 3273.6 mm, approximately 3.27 meters.

For layout planning, distinguish the robot's reach specification from the space occupied by the complete application. The end effector, workpiece, surrounding equipment, and required movement all contribute to the operating space.


Before positioning the robot, map the pickup location, destination, approach direction, and clearance around each station. Check both the loaded movement and the return path.

For example, when planning a machine-loading cell, evaluate whether the robot can approach the machine opening with the workpiece in the required orientation. When planning a palletizing cell, review the farthest placement position and the highest intended layer—not only the nearest pickup point.

The SF500-C3100 uses a six-axis articulated structure. This makes part orientation an important consideration when evaluating the application, alongside payload and reach. 

Describe the required movement as a complete sequence. Does the component remain upright throughout the transfer? Does it need to turn before entering a fixture? Must the gripper approach from above, from the side, or at an angle?

For example, a proposed transfer might involve picking a housing from a conveyor, changing its orientation, and presenting it to an assembly fixture. Ask for an assessment of the entire sequence, including clearance and tooling access, rather than checking only the start and end positions.

Applications to Evaluate for the SF500-C3100

The following application concepts can help structure an initial discussion with CHAIFU. They are starting points for engineering review, not confirmation that every part or process is suitable.

Heavy Material Handling

Consider the SF500-C3100 for transferring large components between defined production stations. Example project briefs could include moving a metal housing from an incoming conveyor to a fixture or transferring a fabricated assembly between workstations.

Provide the component's dimensions, mass, gripping surfaces, and required placement orientation. Include any variation between product models that the same cell must accommodate.

Machine Loading and Unloading

For a machine-tending project, define the loading opening, fixture position, part orientation, and unloading destination.

Include the machine's operating sequence in the project brief. Ask the integration team to review how part detection, fixture confirmation, machine status, and robot movement will be coordinated. Specify the required outcome rather than assuming that all machine interfaces are included with the robot.

Heavy-Duty Palletizing and Depalletizing

For a palletizing proposal, identify whether the robot will handle individual items, grouped products, or a complete layer.

Provide the pallet dimensions, stacking pattern, maximum stack height, and total mass of each proposed pick. Include the gripper in the loading assessment. For depalletizing, explain how consistently incoming products are positioned and whether their orientation can vary.

Evaluate the Complete Cycle, Not Just Robot Movement

Set a clear production target before requesting a cycle-time assessment.

Describe what one completed cycle means for your process. For example, does it start when a component arrives at the pickup station and end when the robot releases it, or does it also include inspection, fixture operation, and waiting for the next machine?

Ask for the proposal to identify assumptions about travel distance, gripping time, part presentation, and equipment coordination. Require any quoted cycle time to refer to your proposed configuration and sequence.

For acceptance testing, define the part variants, tooling, operating conditions, and production sequence that will be used. This creates a clearer basis for comparing the proposed system with your actual requirements.

Plan the Robot Cell and Safeguarding Together

A robot arm is one component of an industrial robot application. The complete installation may also include tooling, fixtures, conveyors, controls, and process equipment. Its safety assessment must address the application as a whole, including worker access and the hazards associated with the handled load. 

Have a qualified integration team review the cell layout, safeguarding, installation requirements, and maintenance access before commissioning.

In your project specification, ask the team to document responsibilities for risk assessment, safety-system validation, operator training, and handover. Treat these as part of the project scope rather than as items to resolve after the equipment arrives.

Robot Supply or a Complete Automation System?

CHAIFU's published automation offering covers individual robotic work cells through to complete automation systems. For an SF500-C3100 project, define the required delivery scope at the quotation stage. 

Ask the proposal to distinguish between the robot package and application-specific equipment or services. Clarify whether the quotation includes tooling, fixtures, machine interfaces, programming, installation, commissioning, and training.

Also request confirmation of the supplied documentation, spare-parts arrangements, and support scope for the destination where the equipment will operate.

Frequently Asked Questions

Can the SF500-C3100 handle a 500 kg workpiece?

Do not assume that it can when additional tooling is required. The gripper and other wrist-mounted equipment must be included in the load assessment. Have CHAIFU evaluate the combined mass, center of gravity, and inertia against the model-specific loading limits. 

How should I check whether the reach fits my production line?

Submit a dimensioned layout showing the robot's proposed position, pickup and placement locations, required heights, and surrounding equipment. Include the tool and workpiece geometry, then request a review of the complete movement sequence.

How much does the heavy duty robotic arm cost?

Request a configuration-specific quotation for the SF500-C3100. State whether you need a robot package or a complete working cell, and ask for the inclusions and exclusions to be itemized. This provides a clearer comparison than an equipment price with an undefined scope.

What information should I send with an inquiry?

Provide the workpiece weight and dimensions, available drawings or a 3D model, gripping requirements, pickup and placement positions, and target cycle time. 

Include the installation location, operating environment, and intended delivery scope.

Request an SF500-C3100 Application Review

Planning a heavy-duty handling project?

Discuss the CHAIFU SF500-C3100 heavy duty robotic arm with your project team using its 500 kg payload capacity and 3273.6 mm reach as the starting point.

Send your workpiece drawings, proposed layout, and production requirements to CHAIFU. Request confirmation of the load configuration, working range, tooling concept, and supply scope before selecting the final system.

Contact CHAIFU to Request Technical Specifications and a Project Quotation.

contact@chaifuglobal.com