
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 10mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ20X10-10S is a double-acting JIS compact cylinder featuring an external extend stop. A threaded rod with a lock nut limits forward travel, allowing on-machine end-position tuning without swapping parts. With a 10mm full stroke and a 10mm window, the usable extend range is 0-10mm. The retract stroke remains completely unaffected.
Because the piston area is unchanged, force output equals a standard ACQ of this bore. The 20mm bore delivers 157.1N push and 117.8N pull at 0.5MPa. It includes a -S magnet for reed or solid-state switches, fixed elastomer bumpers, and an M8x1.25 male rod-end thread.
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X10-10S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 10 mm |
| Adjuster thread | M8×1.25 |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M5×0.8 (F) / M8×1.25 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×10 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Dial in exact clamping distances on machining fixtures during initial setup without machining custom spacers.
Rapidly reposition extend endpoints on packaging lines when handling different carton sizes or product variants.
Establish precise trial end positions for testing probes or sample handlers in laboratory automation equipment.
For lower force needs, the 16mm bore provides 100.5N push at 0.5MPa. If higher force is required, the 25mm bore yields 245.4N push. If your application never requires stroke adjustments, a fixed-stroke ACQ20 cylinder is sufficient. When ordering this adjustable unit, confirm the 10mm full stroke, 10mm window, S magnet, and M5x0.8 female rod thread.
Quick checklist
It provides 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa. The full stroke is 10mm with a 10mm window, yielding a usable extend range of 0-10mm. The external adjuster features an M8x1.25 thread.
The external threaded stop with a lock nut limits forward travel only, meaning force remains identical to a standard ACQ since piston area is unchanged. Retract stroke is unaffected. The cylinder uses fixed elastomer bumpers for deceleration, and the -S magnet supports both reed and solid-state switches.
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