
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X100-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ160X100-40SB is a double-acting JIS compact cylinder from the big-bore range, featuring a 160mm bore and a 100mm full stroke. An external M36x2.0 threaded stop with a lock nut limits the extend travel, yielding a usable extension range of 60-100mm. You can fine-tune the end position directly on the machine without swapping parts, while the retract stroke remains unaffected.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this size, delivering 10053.1N push and 9424.8N pull at 0.5 MPa. This variant includes the -S piston magnet for reed or solid-state electronic switches and the -B male M36x1.5 rod-end thread for direct load coupling. Fixed NBR elastomer bumpers absorb impact at both ends, and the PT3/8 port supplies air within the 0.15-1.0 MPa operating range.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X100-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 100 mm |
| Adjuster thread | M36×2.0 |
| Port size | PT3/8 |
| 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 | M24×3.0 (F) / M36×1.5 (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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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. |
|---|---|
| 160 | Bore size in mm. |
| ×100 | 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).
Dialing in the exact clamping end position on a multi-model metal press without machining custom spacers for each part.
Shifting the extend limit on a robotic welding fixture to accommodate new vehicle frame dimensions directly on the floor.
Setting precise upper travel limits on heavy-duty pneumatic lift tables to match varying product heights safely.
For lower thrust needs, a 140mm bore yields 7696.9N push at 0.5 MPa, whereas stepping up is impossible as 160mm is the largest big-bore compact option. If your application never requires altering the extend length, a fixed-stroke ACQ cylinder will suffice. When ordering this adjustable unit, verify the 160mm bore, 100mm full stroke, 40mm adjuster window, S magnet option, and B male rod thread.
Quick checklist
The usable extend range is 60-100mm (100mm full stroke minus the 40mm window). Force is identical to a standard ACQ of this bore: 10053.1N push and 9424.8N pull at 0.5 MPa, 14074.3N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa.
The M36x2.0 external threaded stop with lock nut mechanically limits the extend length without changing the piston area, so force is unchanged. The cylinder uses fixed NBR bumpers, not adjustable air cushions. A plain ACQ-type will not hold its load on air loss; for a fail-safe hold, install an external rod lock or pilot-operated check valve.
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