Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke100 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB
The ACQJ125X100-100SB is a double-acting JIS compact cylinder from AirTAC's big-bore range, featuring a 125mm bore and 100mm full stroke. An external threaded stop with a lock nut on the rod-end side restricts how far the rod extends, yielding a usable extend range of 0-100mm. The retract stroke remains completely unaffected by this adjustment. A male M30x1.5 rod-end thread (-B) couples directly to your load.
Because the adjuster only limits travel and never alters piston area, the output force remains identical to a standard ACQ of this size. At 0.5 MPa, it delivers 6135.9N of push force and 5733.8N of pull force. The cylinder body contains fixed NBR elastomer bumpers at each end for end-of-stroke deceleration rather than adjustable air cushions. The included -S magnet works with reed or solid-state switches via the built-in grooves.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 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 (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 ACQJ125X100-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | 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 ACQJ125X100-100SB Is Used
Press Tonnage Trials
Dial in the exact extend end position during prototype press setups without machining new spacers, allowing safe testing of different clamping depths.
Heavy Fixture Changeover
Adapt large automated assembly lines to new product variants by rapidly turning the external M27x2.0 adjuster to shift the extend endpoint.
Bending & Forming Stops
Set precise material bend locations on heavy-duty metal forming machinery, tweaking the 0-100mm window on the fly for different batch dimensions.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X100-100SB the Right Cylinder?
When sizing this big-bore 125mm unit, consider the neighbouring standard bore options. Stepping down to a 100mm bore yields 3927.0N push at 0.5 MPa, while stepping up to a 140mm bore provides 7696.9N push. If your machine setup never requires altering the extend endpoint, a fixed-stroke ACQ cylinder is sufficient. To order this adjustable version correctly, confirm the 125mm bore, 100mm full stroke, 100mm window, the -S magnet requirement, 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 ACQJ125X100-100SB FAQ
The usable extend range is 0-100mm. It provides 6135.9N push and 5733.8N pull at 0.5 MPa, 8590.3N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa.
No. The adjuster only limits the extend length without changing the piston area, so force matches a standard ACQ. The retract stroke is unaffected. Fixed elastomer bumpers handle deceleration, though external shock absorbers are recommended for high-energy loads.
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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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