Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 250mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke250 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB
The AirTAC ACQJ140X250-10SB is a big-bore JIS compact, double-acting single-rod cylinder engineered for heavy-duty applications. It features an external M27x2.0 threaded stop with a lock nut on the extend side, allowing you to fine-tune the forward stroke from 240 mm up to the full 250 mm directly on the machine. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the output force is identical to a standard ACQ of the same bore, delivering 7696.9 N push and 7294.8 N pull at 0.5 MPa. This model includes the -S magnet for electronic or reed switch tracking and the -B male M30x1.5 rod end for direct load coupling. It relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion, operating at 30-500 mm/s within a -20 to +70 C environment.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 250 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 ACQJ140X250-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | 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 ACQJ140X250-10SB Is Used
Press Tooling Changeover
Dial in the exact 240-250 mm extend position during die changes on heavy stamping presses without machining new spacers.
Large Assembly Jigs
Adapt clamping reach on automotive assembly jigs, using the male M30x1.5 rod end to secure fixtures while tuning the stop.
Palletizing Height Stops
Adjust the extend limit on the fly for varying pallet heights in packaging lines, relying on the fixed bumper for end-of-stroke deceleration.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB the Right Cylinder?
When sizing this 140 mm bore, stepping down to a 125 mm cylinder drops the 0.5 MPa push force to 6135.9 N, while stepping up to a 160 mm bore increases it to 10053.1 N. If your end-position never varies, a fixed-stroke ACQ cylinder is sufficient; otherwise, this ACQJ provides the 10 mm extend window needed for product-changeover stops. Confirm your ordering essentials: 140 mm bore, 250 mm full stroke, 10 mm window, S magnet, and B male 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 ACQJ140X250-10SB FAQ
It delivers 7696.9 N push and 7294.8 N pull at 0.5 MPa, and 10775.7 N push at 0.7 MPa. The maximum push force is 1570 kgf at 1.0 MPa. The usable extend range is 240-250 mm (a 10 mm window off the 250 mm full stroke), and the retract stroke is unaffected.
The M27x2.0 external threaded stop with a lock nut mechanically limits the extend length only; it does not alter the piston area, so force remains identical to a standard ACQ. The fixed elastomer bumper decelerates the load near stroke end, but a plain ACQ-type cylinder will drift if air is lost, so an external rod lock or pilot-operated check valve is required for fail-safe load holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
Request a Quote for Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X250-10SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.