
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
The AirTAC ACQJ160X300-50SB is a double-acting, single-rod JIS compact cylinder featuring a big 160 mm bore and 300 mm full stroke. An external threaded stop with a lock nut limits the extend end position, giving a usable forward range of 250-300 mm without swapping parts. The retract stroke remains unaffected. Because the piston area is unchanged, output force is identical to a standard ACQ of this bore.
This model includes a male M36x1.5 piston rod thread for direct load coupling and an integrated magnet (-S) for position sensing. It retains the fixed elastomer NBR bumper at each end for end-of-stroke deceleration. Operating pressure spans 0.15-1.0 MPa, and the PT3/8 port handles high flow requirements.
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X300-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 300 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. |
| ×300 | 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 250 to 300 mm extend stop on a large metal stamping press to accommodate different die heights during product changeovers.
Fine-tune the ejection stroke on heavy molding machinery to safely test trial end positions without replacing the entire cylinder body.
Adjust the forward extension limit on robust lifting mechanisms to alter the resting height of loaded pallets quickly on the factory floor.
For 0.5 MPa push needs below this unit's 10053.1 N, the 140 mm bore provides 7696.9 N. If higher force is required, step up to a larger custom setup. Choose a fixed-stroke ACQ if your machine never requires end-position tuning. Confirm ordering essentials: 160 mm bore, 300 mm full stroke, 50 mm adjuster window, male rod thread (-B), and magnet (-S).
Quick checklist
Push force is 10053.1 N and pull is 9424.8 N at 0.5 MPa. At 0.7 MPa push is 14074.3 N, with a maximum push of 2050 kgf at 1.0 MPa. The full stroke is 300 mm with a 50 mm window, allowing an adjustable extend range of 250-300 mm. The external adjuster uses an M36x2.0 thread.
The threaded stop only changes the extend stroke length, meaning force remains identical to a standard ACQ. The cylinder uses a fixed elastomer NBR bumper at each end for deceleration rather than an adjustable air cushion. For high-energy impacts, add an external shock absorber.
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