
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ160X40-30SB represents the big-bore JIS compact pneumatic cylinder family, engineered for double-acting operation with an external threaded stop and lock nut. This mechanism restricts the outward travel, providing a usable extend range of 10-40 mm from the 40 mm full stroke, while the return stroke remains completely unaffected.
Because the internal piston area stays constant, output thrust matches a standard ACQ exactly, yielding 10053.1 N push and 9424.8 N pull at 0.5 MPa. The unit integrates fixed NBR elastomer bumpers, a PT3/8 port, and an M36x1.5 male rod end (-B) for direct load coupling. Equipped with a piston magnet (-S), it supports both reed and solid-state sensors.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X40-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 40 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. |
| ×40 | 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 10-40 mm extend contact point on a multi-tonnage press without machining new spacers during tool changes.
Adapt outward travel limits rapidly on large injection molding machines when switching between deep and shallow product molds.
Test varying lift heights on heavy palletizers by adjusting the external stop nut, avoiding load drift via external checks.
When sizing this 160 mm bore actuator, dropping down to a 140 mm bore reduces thrust to 7696.9 N push at 0.5 MPa, whereas no larger standard ACQJ bore exists in this compact family. If your application never requires end-position tuning, a fixed-stroke ACQ cylinder is sufficient. To order, confirm the 160 mm bore, 40 mm full stroke, 30 mm window, the -S magnet, and the -B male thread configuration.
Quick checklist
It delivers 10053.1 N push and 9424.8 N pull at 0.5 MPa, 14074.3 N push at 0.7 MPa, and a maximum push of 2050 kgf at 1.0 MPa. The 40 mm full stroke includes a 30 mm window, allowing a usable extend range of 10-40 mm.
The M36x2.0 external adjuster limits outward travel distance only; it does not change piston area, so force remains identical to a standard ACQ. Fixed elastomer bumpers decelerate movement at both ends, and the -S magnet works with reed or solid-state switches.
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