SCARA robots — the EFORT ESR series
Ten EFORT ESR series SCARA robots from 3 kg at 400 mm to 20 kg at 1,000 mm, with 150 to 300 mm of vertical stroke, repeatability from ±0.01 mm on the horizontal axes and standard cycle times from 0.387 seconds. SCARA = Selective Compliance Assembly Robot Arm 平面关节型机器人 — four axes, built for fast work on a flat plane.
| Model | Payload | Arm length | Z stroke | Repeatability, J1+J2 | Standard cycle |
|---|---|---|---|---|---|
| ESR3-400Z15 | 3 kg | 400 mm | 150 mm | ±0.01 mm | 0.433 s |
| ESR6-500Z20 | 6 kg | 500 mm | 200 mm | ±0.015 mm | 0.448 s |
| ESR6-600Z20 | 6 kg | 600 mm | 200 mm | ±0.015 mm | 0.448 s |
| ESR6-700Z20 | 6 kg | 700 mm | 200 mm | ±0.015 mm | 0.525 s |
| ESR10-600Z20 | 10 kg | 600 mm | 200 mm | ±0.015 mm | 0.578 s |
| ESR10-700Z20 | 10 kg | 700 mm | 200 mm | ±0.015 mm | 0.542 s |
| ESR10-800Z20 | 10 kg | 800 mm | 200 mm | ±0.02 mm | 0.576 s |
| ESR10-800Z30 | 10 kg | 800 mm | 300 mm | ±0.02 mm | 0.556 s |
| ESR20-4-800 | 20 kg | 800 mm | 300 mm | ±0.025 mm | 0.387 s |
| ESR20-4-1000 | 20 kg | 1,000 mm | 300 mm | ±0.025 mm | 0.439 s |
Source: EFORT ROBOT SELECTION GUIDE 2024. Vertical axis repeatability ±0.01 mm and rotation ±0.01° across the range. Arm weight is not published here because the selection guide and the per-model datasheet give different figures for it — we send the datasheet for the model you are considering.
Also in the series
ESR4-300Z15 · ESR5-4-550T · ESR10-800Z42 · ESR20-800Z42 · ESR20-1000Z42 · ESR30-1000Z42 · ESR50-1200Z40 · ESR65-1200Z40 · ESR10-3-550Z15 · ESR10-3-650Z15 · ESR10-3-750Z15 · ESR50-4-1200 — designations published by the manufacturer. We quote these and send the datasheet on request; we do not publish specifications we cannot show you the source for.
Where these are used
- Electronics assembly — connectors, screws, clips, board handling, with vision correction.
- Dispensing on a plane — adhesive and sealant beads on flat parts, where bead speed and corner behaviour matter more than payload.
- Machine tending on trays — loading and unloading magazines and trays at a rate a six-axis arm cannot match.
- Packaging — primary packing, tray filling, small-case loading.
Frequently asked questions
What does SCARA stand for?
SCARA = Selective Compliance Assembly Robot Arm 平面关节型机器人. The arm is rigid vertically and compliant horizontally, which is what an insertion or a screwdriving operation wants: the tool goes straight down, and small lateral errors are absorbed rather than fought.
SCARA or six-axis?
If every pick and every place happens on a horizontal plane with the tool pointing down, a SCARA is faster, cheaper and takes less floor area. The moment the part has to be tilted or approached at an angle, you need the six-axis arm.
What is the Z number in the model name?
The vertical stroke in millimetres. ESR10-800Z20 is a 10 kg arm, 800 mm arm length, 200 mm of Z travel. If your part has to be lifted clear of a fixture 250 mm tall, the Z20 will not do it.
What does the standard cycle time mean?
The manufacturer cycle: 25 mm up, 300 mm across, 25 mm down and back, at rated load. It is a comparison figure between models, not a promise for your part — your gripper, your acceleration limits and your part weight all move it.
Request a quote Tell us the part, the pitch between pick and place and the target rate.