Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 150mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke150 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB
The AirTAC ACQJ125X150-20SB is a double-acting, single-rod JIS compact cylinder engineered for big-bore applications up to 300mm strokes. It features an external M27x2.0 threaded stop with a lock nut on the extend side, allowing you to fine-tune the stroke length from 130mm up to the full 150mm directly on the machine. The retract movement remains completely unaffected by this adjustment.
Because the piston diameter is unchanged, output force remains identical to a standard ACQ of this bore, yielding 6135.9N push and 5733.8N pull at 0.5MPa. This variant includes the -S magnet for reed or solid-state sensors and a -B male M30x1.5 piston rod end that couples directly to your load. Deceleration is handled by a fixed NBR elastomer bumper at each end.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 150 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 ACQJ125X150-20SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 ACQJ125X150-20SB Is Used
Press Tonnage Trials
Dial in the exact 130-150mm extend position during stamping press setup to test material forming depths without machining new spacers.
Package Diverters
Alter the extend reach on heavy-duty sorting gates to accommodate varying box sizes on the fly during product changeover.
Heavy Fixture Clamping
Secure large castings by tuning the extend stop to clamp precisely at 145mm, ensuring repeatable holding without over-traveling.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X150-20SB the Right Cylinder?
If you require slightly less thrust, the Ø100 bore provides 3927.0N push at 0.5MPa, whereas stepping up to the Ø140 bore yields 7696.9N push. If the exact 150mm end position never varies, a fixed-stroke ACQ cylinder is simpler and suffices. When ordering this adjustable unit, verify the 125mm bore, 150mm full stroke, 20mm window, -S magnet, and -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 ACQJ125X150-20SB FAQ
It delivers 6135.9N push and 5733.8N pull at 0.5MPa, 8590.3N push at 0.7MPa, and a maximum push of 1251 kgf at 1.0MPa. The usable extend range is 130-150mm (150mm full stroke minus the 20mm window). It has a PT3/8 port, an M27x2.0 adjuster thread, and an M30x1.5 male rod end.
No, the adjuster only changes the extend stroke length; force remains identical to a standard ACQ because the piston area is unchanged. Deceleration is managed by a fixed NBR elastomer bumper at each end, not an adjustable air cushion. For high-energy loads, add an external shock absorber, and note that a plain ACQ-type will not hold its load on air loss without an external rod lock.
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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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