Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke200 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S
The AirTAC ACQJ140X200-75S is a double-acting, big-bore JIS compact cylinder featuring an external extend-stop mechanism. A threaded rod-end adjuster with an M27x2.0 lock nut lets you fine-tune the extend end position on the machine, yielding a usable extend range of 125 to 200 mm from the 200 mm full stroke. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, output force is identical to a standard ACQ of this bore, delivering 7696.9 N push at 0.5 MPa. The Ø32 mm piston rod uses an M22x2.5 female end thread, and the body incorporates fixed NBR elastomer bumpers at both ends rather than adjustable air cushions. The integrated -S piston magnet pairs seamlessly with reed or electronic solid-state switches.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 200 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.
Theoretical Output Force (Ø140mm)
| 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.
Model Code: Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×200 | 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 ACQJ140X200-75S Is Used
Heavy Press Tonnage Setup
Dial in the exact 125 to 200 mm extend reach during heavy press commissioning to accommodate varying material thicknesses without machining new spacers.
Automotive Welding Changeover
Quickly reposition the extend endpoint for different vehicle chassis fixtures on a welding line, utilizing the external M27x2.0 stop to switch models rapidly.
Large Assembly Trial Positions
Establish optimal final clamping depth on large robotic assembly stations by testing various extend endpoints within the 75 mm adjustment window before locking the nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X200-75S the Right Cylinder?
Selecting this Ø140 big-bore unit provides massive thrust up to 1570 kgf at 1.0 MPa. Stepping down to a Ø125 bore drops the 0.5 MPa push to 6135.9 N, while moving up to Ø160 raises it to 10053.1 N. If your end position never varies, a fixed-stroke ACQ cylinder is simpler and suffices. When ordering, verify the 200 mm full stroke, the 75 mm adjuster window, the -S magnet, and the default female rod thread.
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 ACQJ140X200-75S FAQ
This big-bore cylinder delivers a push force of 7696.9 N and a pull force of 7294.8 N at 0.5 MPa, with a maximum push of 1570 kgf at 1.0 MPa. The 200 mm full stroke can be shortened by up to 75 mm via the external stop, giving a usable extend range of 125 to 200 mm.
The external M27x2.0 threaded stop with lock nut limits only the extend length, leaving retract unchanged and preserving standard force output. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain compact cylinder does not hold loads on air loss; use an external rod lock or pilot-operated check valve for fail-safe holding.
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Related AirTAC ACQJ Compact Cylinders
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