Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 125mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke125 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB
The AirTAC ACQJ125X125-30SB is a double-acting, single-rod JIS compact cylinder engineered for big-bore tasks, supporting standard strokes up to 300mm. It features an external M27x2.0 threaded stop with a lock nut on the rod-end side, permitting on-machine extend end-position tuning. You can shorten the extend stroke by 30mm, yielding a usable forward range of 95 to 125mm, while the retract stroke remains unaffected.
Because the internal piston area stays constant, output force equals that of a standard ACQ counterpart, yielding 6135.9N push and 5733.8N pull at 0.5MPa. This variant includes the -S magnet for electronic or reed switches and the -B male M30x1.5 rod end. It relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 125 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 ACQJ125X125-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×125 | 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 ACQJ125X125-30SB Is Used
Press Tonnage Setup
Dialing in exact material deformation in heavy stamping presses by trimming the forward stroke within the 95 to 125mm window during initial tooling setup.
Automotive Component Forming
Adjusting the end stop for new part heights or trial end positions on an automotive assembly line without machining new spacers or changing cylinder hardware.
Heavy Lifting Platform Control
Fine-tuning the lift height of a multi-product palletizing platform where the extend end position must adapt on the fly to varying package dimensions.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X125-30SB the Right Cylinder?
For lower force needs, the ACQJ100 bore provides 3927.0N push at 0.5MPa, whereas the ACQJ140 steps up to 7696.9N. If your forward position never varies, a fixed-stroke ACQ cylinder is simpler. When ordering this unit, verify the 125mm bore, 125mm full stroke, 30mm window, -S magnet, and -B male M30x1.5 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 ACQJ125X125-30SB FAQ
It delivers 6135.9N push and 5733.8N pull at 0.5MPa, 8590.3N push at 0.7MPa, and a maximum push of 1251kgf at 1.0MPa. The full stroke is 125mm with a 30mm adjustable window, giving a usable extend range of 95 to 125mm. Operating pressure is 0.15-1.0MPa.
The external M27x2.0 threaded stop with lock nut limits only the forward stroke length, leaving retract unchanged. Force remains identical to a standard ACQ because the piston area is unaltered. The cylinder uses fixed NBR bumpers, not adjustable cushions, and a plain ACQ will not hold a load on air loss; use an external rod lock for fail-safe 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 ACQJ125X125-30SB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.