
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X100-40S 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 ACQJ160X100-40S is a double-acting JIS compact cylinder featuring a 160mm bore and an external threaded stop with a lock nut. This mechanism limits the extend end position, providing a usable extension range of 60 to 100mm (a 40mm adjustment window from the 100mm full stroke). The retract stroke remains completely unaffected by this adjustment. As a big-bore compact variant, it supports standard strokes up to 300mm while maintaining a space-saving riveted body design.
Because the internal piston area is unchanged, the output force remains identical to a standard ACQ of this size. At 0.5 MPa, it generates 10053.1N of push force and 9424.8N of pull force. The unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. Equipped with a built-in piston magnet (-S), it supports both reed and solid-state electronic switches via its dedicated sensor grooves.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X100-40S |
|---|---|
| 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).
Dial in the exact 60 to 100mm extension on a large metalworking press during initial tool setup, preventing over-travel without machining custom spacers.
Quickly reposition the external stop to accommodate different chassis dimensions on a heavy-duty assembly line, cutting product changeover times significantly.
Fine-tune the clamping reach on multi-model welding fixtures, using the 40mm window to adapt to varying part heights while maintaining 14074.3N of thrust at 0.7 MPa.
When sizing this 160mm bore, dropping down to a 140mm cylinder yields 7696.9N push at 0.5 MPa, while stepping up is not available in this compact family. Choose this adjustable model specifically when trial end positions or product-changeovers require on-the-fly extension limits without swapping parts; if your machine only needs a fixed 100mm reach, a standard ACQ series suffices. To finalize your order, confirm the 160mm bore, 100mm full stroke, 40mm window, the -S magnet for sensing, and the default female M24x3.0 rod-end thread. Note that a plain compact cylinder drifts on air loss, so specify an external rod lock or pilot-operated check valve if fail-safe load holding is required.
Quick checklist
This 160mm bore cylinder has a 100mm full stroke with a 40mm adjustment window, yielding a usable extend range of 60-100mm. It provides 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 port size is PT3/8.
No, the external M36x2.0 adjuster stop changes only the extension length, not the piston area, so force remains identical to a standard ACQ. Deceleration relies on a fixed NBR elastomer bumper at each end, which is not an adjustable air cushion; for high-energy cycles, use an external shock absorber or slow the approach speed.
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