Nachi LP210 vs SIASUN SR210: Robot Comparison

IN A NUTSHELL

Nachi LP210 vs SIASUN SR210 is a choice about palletizing and load orientation. Nachi LP210 and SIASUN SR210 210 kg / 2658 mm differ in their working envelope, loading assumptions and engineering ecosystem. A useful decision starts with the exact mechanism and process, then checks whether either robot can execute the required path with the real tool attached. This comparison separates documented specifications from application-level engineering judgments.

Nachi LP210 vs SIASUN SR210: quick verdict

Shortlist Nachi LP210 for 210 kg palletizing within the named 3210 mm envelope and 4-axis architecture. Shortlist SIASUN SR210 for 210 kg industrial handling within the documented 2658 mm working reference. First decide whether the product stays level or must be tilted. A payload match does not remove an architectural difference between four and six axes.

The numerical comparison below uses Nachi LP210 against SIASUN SR210 210 kg / 2658 mm. The stated model scope matters when comparing later revisions or differently equipped installations. Published repeatability describes return to a taught position under specified conditions; it does not establish complete-cell accuracy or prove a faster production cycle.

Specifications and exact configuration scope

Read the reach row together with the geometric notes below. Manufacturers may specify an arm-link sum, a wrist-centre motion area or reach to the flange; those dimensions are not interchangeable. The table does not establish access to every point at every tool angle. Controller references identify reviewed packages, and actual compatibility must be confirmed by model, software version and region.

Nachi LP210: design and configuration

The Nachi LP210 is a 4-axis palletizing robot with a 210 kg payload, a reach of 3210 mm and a position repeatability of ±0.4 mm. The J1 axis turns ±180° to serve up to six pallets or several conveyors, with a vertical stroke of 3168 mm for boxes, bags, crates and cases. The arm weighs 1150 kg and is designed for floor mounting. The LP model is a four-axis level-load palletizer. Include the complete bag or layer gripper, retained product and off-centre load in the manufacturer load assessment. The stated reach is not a guarantee of pallet corner access at the highest layer, and it should not be compared with a six-axis tool path as though orientation freedom were identical.

SIASUN SR210: design and configuration

The reviewed SR210 family includes a 210 kg / 2658 mm floor-oriented SR210A-210/2.65 and a distinct 3053 mm SR210A-210/3.05-DW machine-top arrangement. This comparison selects the 2658 mm configuration. The longer shelf-type envelope must not be added to the shorter installation’s assumptions. The review gives ±0.06 mm repeatability and wrist IP67; arm and cabinet protection, mounting steelwork, lifting access and controller package need their own confirmation.

For this pair, SIASUN SR210 offers 210 kg over the stated 2658 mm reference, compared with 210 kg and 3210 mm for Nachi LP210 example. Nachi LP210 has the larger stated distance by 552 mm, but this difference is only a preliminary layout indicator because reference points and joint envelopes can differ. Locate the actual fixture in each manufacturer model before treating this as usable extra working space.

Payload, tooling and a worked load example

Consider an illustrative total wrist load of 168 kg: a 42 kg tool and adapter package carrying a 126 kg part or product group. This arithmetic leaves 42 kg below the Nachi LP210 example’s nominal limit and 42 kg below SIASUN SR210’s nominal limit. These are mass differences, not safety factors or a validated load approval. A heavy camera, valve block or retained material must be included before recalculating the total.

The example exposes the practical question: is the application limited by mass, by tool offset or by wrist rotation? Nachi LP210 is the lower-or-equal nominal payload choice in this pair. SIASUN SR210 offers more or equal headline mass capacity, but that alone cannot approve an eccentric fixture. Moving the same mass farther from the flange increases the moment, and spreading it increases rotational inertia. Manufacturer load diagrams and the actual centre of gravity govern the final allowable motion.

Model the empty, partly loaded and fully loaded tool states separately. A vacuum layer gripper, a weld torch with hoses or an inspection head may change its effective loading during the cycle. Set the controller’s load data for each supported state and validate the transition logic. A payload table cannot predict acceleration derating, cable pull or transient reactions at a machine interface.

Reach, orientation and fixture access

Build the same cell model for both candidates: base height, machine opening, fixture datum, maximum part size, tool extension and access for maintenance. Nachi LP210 provides a stated 3210 mm reference, while SIASUN SR210 210 kg / 2658 mm provides 2658 mm. Check the deepest production pose and the return path with the loaded tool. An arm that just touches the target at full extension may have little freedom left to turn, retract or avoid a door.

For this comparison, distinguish level-load palletizing from general reorientation. Four-axis palletizers can position and rotate a level product around the vertical axis, but cannot independently supply every pitch and roll angle. A six-axis arm may support tilted presentation or recovery, yet it must be assessed on the same pallet pattern and load. Check the lowest pickup, highest layer, farthest corner and safe exit path.

Precision and throughput: compare the same task

The comparison uses ±0.4 mm for Nachi LP210 and ±0.06 mm for SIASUN SR210. These figures should be read in their documented configuration scope. Repeatability is not absolute accuracy, camera calibration accuracy or finished-part capability. Fixture variation, TCP calibration, thermal conditions and tool compliance can dominate the error at the process point, especially when the tool extends far from the flange.

Ask each integrator to execute the same representative path with the same payload model, tool length, process dwell and stop conditions. Report transfer time, settling time, process time and waiting time separately. Published standard cycles often use different loads and distances; dividing one catalogue cycle by another would not establish the production advantage of Nachi LP210 over SIASUN SR210. Use a measured or validated application cycle before assigning a throughput benefit.

Programming, controls and production integration

Nachi LP210 is paired here with the supplied model-specific control package, while SIASUN SR210 uses the supplied model-specific control package. Controller names identify the review baseline rather than a guarantee that all interface options are included. Compare the actual software revision, teaching workflow, diagnostic tools, fieldbus licences and recovery procedures. An existing trained team and reusable production code may outweigh a small dimensional advantage. Obtain a demonstration of the same machine handshake and interrupted-cycle recovery on both platforms.

Specify the PLC handshakes before ordering: cycle request, ready, busy, complete, fault, part present and recovery authorization. Define how an interrupted operation resumes without repeating a dangerous or quality-critical action. Vision, force sensing, fieldbus communication and external-axis coordination must be checked as explicit included or optional functions. An Ethernet connector does not by itself prove that a particular industrial protocol or software interface is licensed and supported.

Configuration and communication detail

Protection, installation and maintenance

Match the precise protection package to the process. Standard, protected, cleanroom, foundry and washing configurations can have different seals, services and maintenance requirements. Do not transfer the best optional IP or cleanroom rating to an unprotected base model. Check the controller location, cable bend radius, available lifting access and base reactions with the installer.

Treat safe operation as a property of the complete task and installation. Include the tool, sharp workpiece edges, trapping points, dropped loads and machine access. These robot systems require task-specific safeguarding; payload or compact size does not establish safe unguarded operation. Plan tool replacement and fault recovery without dismantling the whole installation, and include connector access, lubrication and spare-cable replacement in the maintenance layout.

Price and lifecycle value

Published arm list prices: Nachi LP210 is listed from $48,000 and SIASUN SR210 is listed from $48,000. Request configuration-specific quotations for Nachi LP210 and SIASUN SR210. An arm-only number is not the price of a commissioned production cell. Ask for separate line items for controller, pendant, communication options, end effector, safety equipment, installation, acceptance, training and warranty. Price changes, regional support and included software can reverse an apparent hardware-cost advantage. Compare the same delivered scope before calculating payback.

Compare the installed production scope: tool, fixtures, sensing, guarding, machine interface, programming, acceptance and training. For palletizing, include infeed control, pallet detection, load retention and gripper services. Keep purchase cost and recurring support costs separate. No payback figure is defensible until the actual cycle, yield, utilization and installation quotation are known.

Selection and acceptance plan

Advance Nachi LP210 when 210 kg palletizing within the named 3210 mm envelope and 4-axis architecture solves the real constraint and its selected configuration passes the load and access checks. Advance SIASUN SR210 when 210 kg industrial handling within the documented 2658 mm working reference provides the more suitable process arrangement. Reject either candidate if a mandatory pose, protection requirement or controller function cannot be demonstrated. A purchasing shortlist should preserve these conditions instead of converting a single catalogue advantage into a blanket recommendation.

Before acceptance, agree the representative parts, tool states, operating sequence and quality criteria with both suppliers. Demonstrate cold start, normal production, rejected parts, interrupted cycles and controlled recovery. Record the final tool data and software backup. This turns the comparison into a repeatable purchasing decision and helps prevent a later fixture change from invalidating the original robot selection.

Motion architecture and functionality

Nachi LP210 has 4 arm axes and SIASUN SR210 has 6 arm axes. A four-axis mechanism cannot independently supply every pitch and roll angle. Assess whether the tool must stay level or be presented at varying attitudes. Compare tool detection, sensing, machine I/O and recovery as separate delivered functions.

Industries and application fit

For Nachi LP210 vs SIASUN SR210, use the actual part and process as the industry filter. Electronics, manufactured-component handling and machine tending are candidate uses when their tool mass, access and quality requirements fit the documented configurations. These are application-selection judgments, not claims that either exact model is installed at a named customer. A food, medical-device or clean-production application additionally requires the correct material, lubrication and protection package; the base model name does not establish hygienic or cleanroom compliance.

Frequently asked questions

Which robot is better for this application?

Nachi LP210 is the stronger starting point for 210 kg palletizing within the named 3210 mm envelope and 4-axis architecture, while SIASUN SR210 is worth shortlisting for 210 kg industrial handling within the documented 2658 mm working reference. The final choice depends on the real loaded path, required protection, controls and acceptance results. Neither a higher payload nor a longer reach establishes a universal winner.

What payload should I use for the comparison?

Use 210 kg for the specified Nachi LP210 example and 210 kg for SIASUN SR210 210 kg / 2658 mm, subject to all documented load and orientation conditions. Include the tool, adapters, sensors and carried part. Confirm exact configuration, controller, wrist loading and installation envelope.

Does the stated reach guarantee access to my fixture?

No. The comparison gives 3210 mm for Nachi LP210 and 2658 mm for SIASUN SR210 using the stated model references. Joint limits, reach reference points, wrist orientation, tool length and collisions determine whether the actual fixture is accessible. Simulate the full approach and exit path.

Can I use the best specifications from every family variant?

No. Keep each named model and revision intact. A different arm length, controller generation or protection option can change the relevant specification. Do not combine one version’s maximum payload with another version’s maximum reach.

Is repeatability the same as finished-part accuracy?

No. The stated values are ±0.4 mm for Nachi LP210 scope and ±0.06 mm for the competitor scope. Finished-part results also depend on fixtures, TCP calibration, sensing, thermal conditions and tool compliance. Validate the actual process instead of treating catalogue repeatability as a complete accuracy guarantee.

How should purchase prices be compared?

Use current written quotations for Nachi LP210 and SIASUN SR210 with the same arm, controller, software, tooling and commissioning scope. This comparison does not represent an ATC sales offer or stock confirmation. Historical review figures are not a substitute for a configuration-specific purchase quotation.

Can these robots operate safely next to people without guarding?

These specifications do not establish a safe unguarded installation. Assess the complete task, tool, load and machine interface, then implement and validate the required safeguarding and operating procedures. Do not infer collaborative operation from a compact arm, limited payload or education setting.

What should an acceptance test compare?

Use the same parts, actual tool load, fixture locations, path and quality criteria for Nachi LP210 and SIASUN SR210. Check production timing, settling, interruptions and recovery. Include the highest layer and farthest pallet corner. Approve the exact delivered configuration and preserve its final settings.

Related ATC reviews

Read the Nachi LP210 review

Read the SIASUN SR210 review

Specifications describe the model scope identified above. Purchase pricing requires a current configuration-specific quotation. Confirm current manufacturer documentation, local supply, controller compatibility and the exact configuration before purchase.