
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X150-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ140X150-20SB is a big-bore JIS compact cylinder featuring a double-acting single rod and an external extend stop. An M27x2.0 threaded adjuster with a lock nut lets you set the extend end position on the machine, yielding a usable forward range of 130 to 150 mm. The return stroke remains completely unaffected.
Because the piston area stays constant, output force equals a standard ACQ of this size: 7696.9 N push and 7294.8 N pull at 0.5 MPa. This big-bore unit includes a male M30x1.5 rod end for direct load coupling, a built-in piston magnet for electronic or reed sensors, and fixed NBR elastomer bumpers at both ends to absorb end-of-stroke impact.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X150-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 150 mm |
| Adjuster thread | M27×2.0 |
| 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 | M22×2.5 (F) / M30×1.5 (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 | 7697 N | 7295 N |
| 0.7 MPa | 10776 N | — |
| Max (@1.0 MPa) | 1570 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. |
|---|---|
| 140 | Bore size in mm. |
| ×150 | 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 130 to 150 mm extend reach during heavy press tooling changes without machining new spacers.
Shift the rod extension by up to 20 mm to accommodate different chassis frame widths on a welding line.
Fine-tune the lifting height of heavy pallets in packaging lines to match varying load heights precisely.
Selecting this 140 mm bore provides 7696.9 N push at 0.5 MPa. If you need less thrust, stepping down to a 125 mm bore yields 6135.9 N, while moving up to a 160 mm bore offers 10053.1 N. A fixed-stroke ACQ is sufficient if your end position never varies. Confirm your ordering essentials: 140 mm bore, 150 mm full stroke, 20 mm adjust window, male rod thread (-B), and magnet (-S).
Quick checklist
It delivers 7696.9 N push and 7294.8 N pull at 0.5 MPa, 10775.7 N push at 0.7 MPa, and a maximum push of 1570 kgf at 1.0 MPa. The 20 mm adjustment window provides a usable extend range of 130 to 150 mm.
The M27x2.0 threaded stop with lock nut limits forward travel without changing the piston area, so force remains identical to a standard ACQ. Fixed NBR bumpers absorb end impacts, but a plain cylinder drifts on air loss; use an external rod lock for fail-safe holding.
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