SCARA Robots
A SCARA is a four-axis arm for fast, flat, repetitive work such as pick and place: it inserts components, stacks trays and feeds testers faster than a six-axis robot. 10 models cover 3 to 60 kg payload and 400 to 1200 mm reach. It cannot tilt the tool, so angled approaches need a six-axis arm instead.
Not sure which model fits?
Send the part weight, the reach you need and the cycle. We will name the model — and say plainly if a robot is not the right answer for it.
SCARA robots for high-speed assembly, pick-and-place, screwdriving, dispensing and testing. 10 models, 3 to 60 kg payload, reach 400 to 1200 mm.
Four-axis kinematics — rigid vertically, compliant horizontally — makes SCARA faster than a six-axis arm on flat, repetitive work: inserting components, stacking trays, feeding testers. They cannot approach a part from the side, so anything requiring tool angle needs a six-axis robot instead.
Electronics assembly, small appliance production, packaging and pharmaceutical handling are the usual applications. The largest model, the RS12-60Z40H, takes 60 kg maximum payload (25 kg rated) at 1200 mm reach.
What is a SCARA robot
SCARA stands for Selective Compliance Assembly Robot Arm. Two rotary joints, J1 and J2, move the arm in the horizontal plane; the vertical axis J3 raises and lowers the tool, and J4 rotates it. The arm is rigid vertically and compliant horizontally — the layout that makes a SCARA faster than a six-axis robot on flat, repetitive work.
Typical applications are pick and place from a conveyor, tray or feeder; small-part assembly and kitting; packaging; and handling in electronics production. All of them happen in one plane with a vertical approach. The tool cannot tilt, so where a part has to be approached at an angle, a six-axis arm is the right choice.
In the CRP model code the first number is the reach in decimetres and the second is the maximum payload in kilograms; Z20 and Z40 mark a 200 mm or 400 mm stroke of the vertical axis. The specifications give both a maximum and a rated payload. The table below compares all 10 models by payload, reach, Z stroke and repeatability; send us the gripper and part weight and we will check the model against both values.
Compare models
| Model | Maximum payload | Reach | Z-axis stroke | Repeatability | Standard cycle time | Robot weight | Body protection |
|---|---|---|---|---|---|---|---|
| SCARA robot RS04-03Z17 | 3 kg (rated 1 kg) | 400 mm | 200 mm | J1~J2: ±0.01 mm | 0.49 s | 13 kg | IP20 |
| SCARA robot RS05-06Z20 | 6 kg (rated 3 kg) | 500 mm | 200 mm | J1~J2: ±0.02 mm | 0.35 s | 19 kg | IP20 |
| SCARA robot RS06-10Z40H | 10 kg (rated 5 kg) | 600 mm | 400 mm | J1~J2: ±0.025 mm | 0.48 s | 36 kg | IP20 |
| SCARA robot RS06A-06Z20 | 6 kg (rated 3 kg) | 600 mm | 200 mm | J1~J2: ±0.02 mm | 0.36 s | 20 kg | IP20 |
| SCARA robot RS07-06Z20 | 6 kg (rated 3 kg) | 700 mm | 200 mm | J1~J2: ±0.02 mm | 0.39 s | 21 kg | IP20 |
| SCARA robot RS07-10Z40H | 10 kg (rated 5 kg) | 700 mm | 400 mm | J1~J2: ±0.025 mm | 0.48 s | 37 kg | IP20 |
| SCARA robot RS08-10Z40H | 10 kg (rated 5 kg) | 800 mm | 400 mm | J1~J2: ±0.025 mm | 0.48 s | 38 kg | IP20 |
| SCARA robot RS08-20Z40H | 20 kg (rated 10 kg) | 800 mm | 400 mm | J1~J2: ±0.02 mm | 0.49 s | 45 kg | IP20 |
| SCARA robot RS10-20Z40H | 20 kg (rated 10 kg) | 1000 mm | 400 mm | J1~J2: ±0.02 mm | 0.49 s | 47 kg | IP20 |
| SCARA robot RS12-60Z40H | 60 kg (rated 25 kg) | 1200 mm | 400 mm | J1~J2: ±0.03 mm | 0.79 s | 120 kg | IP20 |
Frequently Asked Questions
The limit is absolute: a SCARA cannot approach a part from the side. Anything requiring tool angle needs a six-axis robot instead.
Check the Z stroke against your insertion depth plus clearance over the fixture — it is the dimension most often specified too short.
Technical support is online: our engineers consult on setup, programming questions and fault-finding by video call. Spare parts are shipped directly from the factory.
CRP production is certified to ISO 9001, and the factory reports its products are certified to an MTBF above 100,000 hours.