SA7A-7/0.50 SCARA Robotic Arm (Manipulator)
SCARA Four-Axis Robot · Load capacity 7 kg · Reach: 500mm
SA7A-7/0.50 Specification Parameters
SA7A-7/0.50 SCARA four-axis robot, payload 7 kg, reach 500 mm.
Model introduction
SA7A-7/0.50 · Load capacity 7 kg · Reach 500mm · 4-axis · Repeatability: J1+J2/±0.02mm, J3/±0.01mm, J4/±0.01° · IP20 protection. Parameters are taken from the product page on Siasun's official English website.
SA Series SCARA Robots · Series technical features
Load capacity: 4-20kg · 4-axis high-speed
The official page states that the self-developed core components deliver stronger loads, higher precision, faster beats, and lower vibration.
The overall height is lower, reducing space constraints and making deployment convenient.
Next-generation control cabinet supports multiple programming and teach-in methods, with a rich set of user cables reserved in the main unit.
Official labeling is mainly used in industries such as 3C and automotive electronics.
Typical application scenarios
Common application processes for this model (click to view process details):
SA Series SCARA Robots · Other models in the same series
Compare load and reach to choose the model that best suits your process.
SA7A-7/0.50 model positioning and working condition adaptation
SA7A-7/0.50 The SCARA horizontal multi-joint robot model, part of the Siasun SA series SCARA robot, has a rated load of 7kg, a motion radius of 500mm, and a repeatability of ±0.02mm. Siasun Robotics' technical foundation is rooted in the Chinese Academy of Sciences, with strong expertise in clean robots and semiconductor equipment, and deep expertise in special robots (vacuum/cleanroom/explosion-proof); The control platform is the SIASUN platform, and the program ecosystem is graphical + script programming.
From the perspective of working condition adaptation, typical applications for light load (7kg) positioning are:Machine tool loading and unloading, 3C assembly, inspection, and handling of small and medium-sized partsCommon application processes for this model include precision assembly, handling, sorting, screw fastening, and loading and unloading. The short boom (500mm) model has a compact structure, suitable for dense workstations and close-range pick-and-place operations, with a small working unit footprint. ± 0.02mm repeatability is the standard level for six-axis industrial robots, covering the vast majority of welding operations, handling, palletizing, and loading and unloading operations. The end fixture is counted as a load from the most important point—the total of gripper + workpiece + sensor should not exceed 80% of the rated value. Workpieces with high inertia (long rod/uneven load) should be checked separately.
| Parameters | Engineering interpretation and usage recommendations |
|---|---|
| Rated load 7kg | It is recommended to reserve a load margin of 20%–30%; Verification is made by combining end self-weight + workpiece + imbalanced load inertia, especially sensitive to high-speed conditions |
| Movement radius: 500mm | Determine the radius of the workcell layout: bins, tooling, and fences are bounded by maximum arm span + safety distance; Verify the accessibility of each pick-and-place point during cross-station service |
| Repeatability: ±0.02mm | Repeatability ≠ absolute accuracy: Precision assembly requires external measurement closed-loop or visual guidance; Long-term accuracy trends rely on annual retest management |
| Number of axes: 4 | The four-axis structure has a clear speed advantage within the horizontal plane, while Z-direction travel and attitude freedom are limited, making it suitable for flat sorting and assembly |
| Protection rating: IP20 | Suitable for standard workshop environments; Dusty and moisture-prone workstations require additional protective kits or positive pressure protection |
| Controller: SIASUN Controller (SIASUN platform) | Decide on the process ecosystem, spare parts channels, and second-hand residual value; Currently, spare parts channels are smooth, and repair and upgrade paths are mature |
Control systems and common failure modes
The SA7A-7/0.50 comes with the SIASUN platform controller, with a graphical + scripted programming language and development environment. Maintenance of this generation of control platforms focuses on three basic components: power, storage, and cooling—most "sudden downtime" can be detected in advance when preventive maintenance is in place.
| Failure mode | Typical performance | Disposal recommendations |
|---|---|---|
| Aging of seals in clean machine models | Aging of Cleanroom Seals (Risk of Excessive Particle Limits) | Included as a mandatory inspection item for annual maintenance, with spare parts stocked in advance |
| Driver and power module failure | Driver and power module failure | Initial interpretation of alarm codes by reference with manuals, remote diagnosis allows for early positioning |
| Loss of specialized parts for vacuum environments | Vacuum environment special parts wear (sealing rings, lubrication drying out) | Daily inspection coverage, with abnormal trends (abnormal noises/temperature rise/errors) recorded |
| Faults in the teach pendant and communication cables | Faults in the teach pendant and communication cables | Quarterly dust removal maintenance and cabinet temperature monitoring |
| Maintenance projects | Cycle recommendations | Key points |
|---|---|---|
| Clean machine models are maintained according to cleanroom procedures (tool cleaning, particle retesting). | According to the manufacturer's manual cycle | Clean machine models are maintained according to cleanroom procedures (tool cleaning, particle retesting). |
| Seals must be replaced periodically | By cycle | Seals must be replaced periodically |
| OEM specifications for vacuum chamber-related spare parts | According to the manufacturer's manual cycle | OEM specifications for vacuum chamber-related spare parts |
| Cable and drag chain inspection | every six months | Insulation, shielding, and bending radius inspection of power and encoder lines, as well as wear of cables inside the drag chain, are the main causes of intermittent faults |
| Zero point and accuracy retest | Every year | Repeatability measured by dial gauges or laser trackers, drift trend digitization—accuracy degradation can be seen six months in advance |
| Control cabinet dust removal and fans | Every quarter | Filter cleaning, fan speed and noise checks, cabinet temperature recording; Dust environments shorten the cycle |
Henghuan's service capability for SA7A-7/0.50
This site is a third-party robotics technology service provider. The eight major business support services related to SA7A-7/0.50 are as follows (sorted by service frequency for each model):
- Maintenance and repair: For SA7A-7/0.50 on-site diagnosis, board-level maintenance, and annual maintenance contract—clean model maintenance according to cleanroom procedures (tool cleaning, particle re-testing), etc., we follow SOP and respond to Sichuan-Chongqing on the same day.
- Used & in-stock robot sales: Cleanrooms and semiconductor equipment are abundant, and third-party maintenance requires cleanliness procedural capabilities—we have corresponding SOPs; In-stock SA7A-7/0.50 or equivalent models come with a full-function test report and a 12-month warranty.
- Sales of new industrial robots: When adding new production lines or replacing batches, we conduct cross-brand selection comparisons based on process requirements (including models of the same class as Siasun Robots), and provide configuration and pricing plans.
- Applied technology services: Process programming, trajectory optimization, tap time potential, and model change formula management for the SA7A-7/0.50 are targeted for precise assembly, handling, sorting, screw tightening, and loading/unloading conditions.
- Research and development of automation equipment: Custom fixture ends, peripheral tooling, and safety fences for SA7A-7/0.50, with interfaces designed according to Siasun Robotics flange and IO standards.
- Robot rental: For short-term capacity or process validation periods, models in stock equivalent to SA7A-7/0.50 can be rented, including transportation, installation, and commissioning, with flexible lease terms and conversion options.
Common issues with this device
Is it easy to find spare parts for the SA7A-7/0.50?
Siasun Robotics: Spare parts channels for this generation are smooth; we have in-stock or short-cycle channels for standard parts such as drivers, power modules, batteries, and teach pendant components; For cleanroom models, it is recommended to configure consumables for cleanroom maintenance (tool cleaning, particle retesting) according to the annual maintenance contract.
With a nominal load of 7kg, how much can it actually handle?
The rated load is the static load limit of the flange surface. In actual selection, three factors must be considered: the self-weight of the end fixture (vacuum suction cup groups or grippers often account for 2–5kg), the inertia generated by the workpiece offload (checked according to the inertia ratio when the center of gravity deviates from the flange center), and the dynamic load during high-speed movement. The conventional engineering practice is to keep the "end + workpiece" within 70%–80% of the rated value to ensure cycle time and service life.
If the equipment's accuracy deteriorates after several years of use, how can it be restored?
According to the inspection order: first check whether the zero point is drifting (common after collision or battery depletion), then perform zero calibration; Check the reducer's return error (actual measurement of forward and reverse positioning deviation; if exceeded, disassemble or replace); Then check the installation base fastening and foundation settlement; Finally, trajectory compensation parameter restructuring. Most accuracy issues can be mostly restored after calibration and maintenance, so there is no need to rush into major repairs—we first release the inspection data before deciding on the plan.
Is the used SA7A-7/0.50 worth buying?
There is a large stock of clean and semiconductor equipment, and third-party maintenance requires cleanliness procedural capabilities—we have corresponding SOPs. Three essential items for second-hand procurement: comprehensive inspection reports (axial accuracy, driver status, insulation and battery), maintenance history and operating hours, controller generation, and software license integrity. Every used machine we sell comes with inspection records and a 12-month warranty, and we can also accept third-party inspections designated by customers.
Need technical support or procurement for this model?
Whether it's model selection comparison, installation and commissioning, or maintenance of in-use equipment, you can contact Henghuan. Tell us about your processes, loads, and equipment status, and we will provide third-party technical support and solution recommendations.
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