Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø160mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ160 mm
- Full stroke250 mm
- Port sizePT3/8
- Adjuster threadM36×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB
The AirTAC ACQJ160X250-40SB is a double-acting JIS compact cylinder engineered for heavy-duty applications, featuring a massive 160mm bore and a 250mm full stroke. An external threaded stop with a lock nut allows you to fine-tune the extend end position on the machine itself. With a 40mm adjustment window, the usable extend range spans 210 to 250 mm, while the retract stroke remains completely unaffected. Because the piston area is unchanged, the output force is identical to a standard ACQ of this size, delivering 10053.1N of push force at 0.5MPa.
This big-bore variant includes an -S piston magnet compatible with both reed and electronic solid-state switches, plus a -B male piston rod end (M36x1.5) that couples directly to your load. The body integrates fixed NBR elastomer bumpers at both ends for end-of-stroke deceleration rather than adjustable air cushions. Operating pressure ranges from 0.15 to 1.0 MPa, and the unit accepts PT3/8 porting.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø160 mm |
| Full stroke | 250 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.
Theoretical Output Force (Ø160mm)
| 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.
Model Code: Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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).
Where the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB Is Used
Press Tooling Setup
Dial in the exact 210 to 250 mm extend position during press tooling setup without machining custom spacers or swapping components.
Heavy Product Changeover
Adjust the extend stop on the factory floor to accommodate varying large product heights during rapid manufacturing line changeovers.
Bending & Forming Trials
Find the optimal end position for metal bending or forming operations on the fly, testing multiple depths before locking the nut down.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB the Right Cylinder?
Selecting this 160mm bore provides a maximum push force of 2050 kgf at 1.0 MPa. If your application requires slightly less power, stepping down to a 140mm bore yields 7696.9N push at 0.5MPa, whereas moving up is not possible as this is the largest available bore. A fixed-stroke ACQ cylinder is sufficient if your end position never varies. When ordering, confirm the 250mm full stroke, the 40mm adjustment window, the S magnet, and the B male rod thread to ensure proper integration.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ160X250-40SB FAQ
The usable extend range is 210 to 250 mm (a 40mm window off the 250mm full stroke). The force is identical to a standard ACQ: push is 10053.1N and pull is 9424.8N at 0.5MPa, push is 14074.3N at 0.7MPa, and max push is 2050 kgf at 1.0MPa. The retract stroke is unaffected.
An external M36x2.0 threaded stop with a lock nut limits the extend stroke, changing only the stroke length and not the force. Fixed NBR elastomer bumpers decelerate the load at the ends; for high kinetic energy, add an external shock absorber. The -S magnet works with reed or electronic switches, and note that a plain cylinder drifts on air loss, requiring an external rod lock for fail-safe holding.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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