Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø140mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ140 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB
The AirTAC ACQJ140X100-40SB is a double-acting, single-rod JIS compact cylinder from the big-bore adjustable-stroke range, capable of standard strokes up to 300 mm. An external threaded stop with a lock nut limits the EXTEND end position, giving a usable extend range of 60 to 100 mm. The RETRACT stroke remains completely unaffected. Because the piston area is unchanged, the force is identical to a standard ACQ of this bore, yielding 7696.9 N push and 7294.8 N pull at 0.5 MPa.
This unit includes a male-thread piston rod end (M30x1.5) for direct load coupling and a built-in piston magnet (-S) for use with reed or electronic solid-state switches. It uses a PT3/8 port and features fixed elastomer NBR bumpers at both ends for end-of-stroke deceleration. Note that a plain compact cylinder does not hold its load on air loss; an external rod lock or pilot-operated check valve is recommended for fail-safe holding.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø140 mm |
| Full stroke | 100 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 ACQJ140X100-40SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 140 | Bore size in mm. |
| ×100 | 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 ACQJ140X100-40SB Is Used
Press Tonnage Setup
Dial in the exact 60 to 100 mm extend position during press tonnage calibration without machining new spacers.
Heavy Fixture Changeover
Adapt large welding or forming fixtures to new part heights rapidly using the external M27x2.0 stopper adjustment.
Stamping Depth Trials
Fine-tune the end position on heavy stamping presses to test material flow limits before locking the nut.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ140X100-40SB the Right Cylinder?
Selecting this 140 mm bore provides 7696.9 N push at 0.5 MPa. Stepping down to the 125 mm bore yields 6135.9 N push, while stepping up to the 160 mm bore offers 10053.1 N push. If your machine requires a fixed 100 mm extend position without variation, a standard ACQ cylinder will suffice. When ordering, confirm the 140 mm bore, 100 mm full stroke, 40 mm adjuster window, the -S magnet, and the -B male 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 ACQJ140X100-40SB FAQ
The force is identical to a standard ACQ: 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 usable extend range is 60 to 100 mm (a 40 mm window off the 100 mm full stroke). The bore is 140 mm, the port is PT3/8, the rod end is male M30x1.5, and the external adjuster thread is M27x2.0.
The external threaded stop with a lock nut limits the extend stroke length only; it does not alter the piston area or force. Fixed elastomer NBR bumpers decelerate the load near stroke ends, but for high kinetic energy you should slow the approach or add an external shock absorber. The -S built-in magnet works with reed or electronic solid-state switches.
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 ACQJ140X100-40SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.