2400kg Heavy Duty Robotic Arm | 6-Axis SF2400-C3760

Heavy-component automation is not simply a question of lifting more weight. A production system must handle the complete tool-and-workpiece assembly, present the component in the required orientation, and transfer it reliably into the next operation.

The CHAIFU SF2400-C3760 heavy duty robotic arm combines a 2400kg payload capacity, 3758.8mm maximum reach, 6-axis articulation, and ±0.3mm repeatability. This vertically articulated model belongs to the CHAIFU ALPHTIC series.

For manufacturers evaluating multi-tonne handling, the model provides a starting point for applications involving substantial components and dedicated gripping equipment. The engineering task is to match its published capabilities to a defined load, movement sequence, and production interface.

SF2400-C3760 Technical Specifications

The specifications above follow the manufacturer’s ALPHTIC data overview. Final selection should use the current technical documentation, model-specific load limits, and installation requirements for the proposed configuration.

Where a 2400kg Industrial Robot Fits in Production

High-payload industrial robots are used to move large castings, machinery components, structural assemblies, and other substantial loads. Established applications include material handling, machine tending, and the transfer of oversized parts between manufacturing operations.

For an SF2400-C3760 project, begin with the production requirement rather than an industry label.

A useful application brief might describe a large housing that must be removed from a transport cradle, reoriented, and loaded into a machining fixture. Another might describe a fabricated assembly that needs controlled placement onto a downstream support.

In both cases, define what the receiving operation requires: the component’s location, orientation, support conditions, and permissible contact surfaces.

The SF2400-C3760 is a candidate to evaluate when the task combines a substantial complete load with the need for articulated positioning. Suitability should be established through load analysis and a motion study—not inferred from the 2400kg rating alone.

Why 6-Axis Motion Matters for Heavy Components

A 6-axis heavy duty robotic arm addresses both position and orientation. This distinction matters when the part must arrive at a fixture at a different angle from the one in which it was collected. Six-axis articulation allows varied tool orientations within the robot’s available motion range.

For large-part handling, specify the required presentation at each stage.

A component may need to remain level during pickup, rotate after clearing its support, and approach the receiving fixture along a constrained direction. The gripper must then release without obstructing clamps or locating features.

For the SF2400-C3760, ask the motion study to demonstrate these transitions with the actual workpiece and tooling geometry.

The practical value of six axes is the ability to complete the required sequence with the correct part orientation—not unrestricted movement at every point in space.

Understanding the 2400kg Payload: Start With the Tooling Allowance

Workpiece Weight Is Only Part of the Load

Robot wrist payload includes the end effector and the object it carries. Grippers, adapters, tool changers, and other wrist-mounted equipment therefore contribute to the total. Moment and inertia limits must also be satisfied.

A useful preliminary calculation is:

Available mass allowance for the workpiece = rated payload − complete wrist-mounted tooling mass

For example, suppose a proposed gripper, adapter, and associated wrist equipment have a combined mass of 350kg:

2400kg − 350kg = 2050kg

This calculation leaves a preliminary workpiece mass allowance of 2050kg. It does not establish that a 2050kg component is approved for the application.

The complete load still needs to be checked against the robot’s permitted center-of-gravity position, wrist moments, and rotational inertia. Those requirements can limit an application even when the combined mass is below the payload rating.

A Lighter Tool Is Not Automatically a Better Load Arrangement

When evaluating gripping concepts, compare more than tool mass. The distance between the mounting flange and the combined center of gravity also matters. Heavy-robot technical information treats wrist loading and workpiece inertia as distinct considerations alongside payload.

For a simple static comparison, the same weight acting at twice the perpendicular distance creates twice the gravitational moment about the reference axis. This explains why a long, lightweight tool is not automatically preferable to a more compact alternative.

Use this principle to guide the tooling discussion, not to substitute for the manufacturer’s load assessment. Submit the complete geometry, gripping position, and intended movements before finalizing either the arm or the gripper.

Using the 3758.8mm Reach: Plan Access, Not Just Distance

Maximum reach is one selection dimension. A complete working envelope also depends on joint motion, tool orientation, and the shape of the accessible operating area. Manufacturer documentation distinguishes these parameters rather than treating them as interchangeable.

For the SF2400-C3760, use 3758.8mm as the initial reach reference, then build the layout around the complete handling assembly.

Check the approach to the component, the clearance above its incoming support, and the space required while it rotates. At the receiving station, evaluate the insertion direction, fixture depth, and withdrawal path.

The component’s outer edges may pass closer to surrounding equipment than the gripper itself. Include those surfaces in the interference study.

A practical layout review should therefore show the full movement, not only a static image of the robot touching the pickup and placement points. Where access is constrained, evaluate changes to fixture position, support height, and robot location before deciding that a different arm is required.

An Illustrative Heavy-Component Transfer Cell

For an initial concept study, assume that a large machinery component arrives on a dedicated cradle and must be transferred into a production fixture.

The proposed process can be defined around four stages:

This is a proposed engineering concept, not a documented customer installation.

For the SF2400-C3760, use the concept to define responsibilities between the robot, gripper, incoming support, and receiving fixture. Specify which system confirms that the part is ready, which confirms that it is secured, and which authorizes the next operation.

The same approach can be adapted to a transfer between assembly stations or placement onto a shipping support. Each version should have its own load, clearance, and process review.

Applications to Discuss With CHAIFU

Large Castings and Machinery Housings

Handling substantial castings and oversized machinery components is an established use of high-payload industrial robots. Manufacturer examples include loading bulky castings onto machine fixtures and moving large engine-related components.

For an SF2400-C3760 inquiry, provide drawings showing the proposed gripping features and any finished surfaces that must not be contacted.

Describe the range of incoming part conditions as well. Product variants may differ in dimensions, mass distribution, or available gripping surfaces. Ask the application study to identify the most demanding combination rather than testing only the easiest component.

Heavy Machine Loading and Unloading

Machine tending is a documented application for heavy-payload robots, but the loading task must be matched to the machine’s physical access and operating sequence.

For the proposed cell, define the machine opening, fixture location, insertion depth, and required approach angle. Include clamping and release conditions in the sequence.

Also state whether the robot only transports the part or holds it while another operation applies force. The latter requires a separate assessment of process loads; it should not be qualified using the payload figure alone.

Fabricated Assemblies and Heavy Unit Loads

For structural assemblies or heavy products placed onto transport supports, specify exactly what moves with the component. Include any carrier, support frame, or pallet that forms part of the lifted assembly.

For stacking, provide the placement orientation, stack height, and support arrangement. Where the task does not require substantial orientation changes, compare the proposed six-axis solution with a suitable dedicated palletizing configuration.

Heavy-robot product families may distinguish general six-axis models from palletizing variants, making configuration—not simply maximum payload—an important part of the comparison.

What ±0.3mm Repeatability Tells You

The SF2400-C3760 has a published repeatability of ±0.3mm.

Repeatability describes how consistently a robot returns to a programmed position. It is different from absolute accuracy, which concerns how closely the achieved position corresponds to the intended position. NIST identifies both as important characteristics when assessing manufacturing performance.

The specification should therefore not be presented as a guarantee that every installed cell will place every component within ±0.3mm of its design location. Nor should it be described as a machining-tolerance guarantee.

For the actual application, define the required placement result at the receiving fixture. Agree on the measurement reference, representative components, tooling configuration, and operating conditions.

Use those requirements to establish a system-level acceptance test. This is more meaningful than treating a robot catalog value as the complete process specification.

Comparing Nearby CHAIFU Payload Classes

The SF2400-C3760 can also be considered alongside adjacent ALPHTIC models:

These figures follow the ALPHTIC data overview.

The comparison illustrates why payload and reach should be reviewed separately. The 2000kg model offers a different reach figure, while the 3000kg model has a higher published payload with the same listed reach as the SF2400-C3760.

For shortlisting, identify which requirement is limiting the project. Then compare the complete load data, motion capability, installation requirements, and proposed production cycle. A higher payload rating alone does not establish a better fit.

Installation and Safety Belong in the Initial Specification

Request the current mounting drawings, foundation loads, anchoring requirements, service clearances, and installation instructions before approving the robot location. Have the supporting structure reviewed by a qualified engineer using the manufacturer’s information.

Provide the operating environment in practical terms: temperature, dust, moisture, coolant exposure, cleaning methods, and any contact with hot components. Confirm the required robot and tooling configuration rather than assuming that “heavy duty” defines environmental suitability.

The safety assessment must address the complete application, including the robot, gripper, held load, associated machinery, and personnel access. OSHA’s technical guidance emphasizes risk assessment and appropriate protective measures throughout application development and operation.

For the proposed cell, require the integrator to address load retention, guarded access, maintenance isolation, and recovery after an interrupted cycle. These are system-design requirements, not capabilities implied by the payload specification.

Define Acceptance Before Comparing Quotations

An effective proposal should explain how the equipment will be verified against the production requirement. Application-based performance evaluation is also central to NIST’s manufacturing robotics work.

For the SF2400-C3760, request a documented load assessment, a motion and clearance study, an integration scope, and an acceptance plan.

Cycle testing should include gripping, confirmation signals, transfer, fixture handover, release, withdrawal, and any machine waiting time that affects output. Ask the supplier to state the assumptions behind its proposed cycle time.

Also separate robot-only pricing from the scope of an integrated cell. Identify which party supplies the gripper, fixtures, controls interfaces, safeguarding, installation, programming, commissioning, and training.

This makes competing proposals easier to evaluate against the same task.

Frequently Asked Questions

Can the SF2400-C3760 handle a 2400kg component plus a gripper?

Not on the basis of its rated payload. The tooling contributes to the wrist load, and the complete assembly must also satisfy the applicable moment and inertia limits. Request approval for the actual load arrangement.

Can a heavy duty robotic arm replace a crane or transfer system?

Evaluate this against a defined operation. Compare the required travel, gripping method, orientation changes, production rate, access requirements, and recovery procedures. A robot should be selected because it meets the process requirements, not because its payload resembles the capacity of an existing lifting device.

How should I request an SF2400-C3760 quotation?

Send the component drawings, mass, dimensions, tooling concept, proposed layout, required orientations, target cycle time, and operating environment. State whether the inquiry covers a robot package or a complete automation cell.

Is a 6-axis robot always the preferred option?

No single configuration is automatically preferable for every task. Six-axis articulation is valuable when the process requires varied tool orientations. Start with the component’s required movement and presentation, then assess the appropriate configuration.

Discuss Your 2.4-Tonne Automation Project With CHAIFU

Bring the component, tooling, and production sequence into the same application review.

Contact Shanghai Chaifu Robotics Co., Ltd. to discuss the SF2400-C3760 6-axis heavy duty robotic arm, request current technical documentation, and define the proposed equipment scope.

Email: contact@chaifuglobal.com

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