Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke200 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB
The AirTAC ACQJ125X200-30SB is a double-acting, single-rod JIS compact cylinder engineered for the big-bore range, supporting standard strokes up to 300 mm. It features an external threaded stop with a lock nut on the rod-end side that limits the EXTEND end position. With a full stroke of 200 mm and a 30 mm adjustment window, the usable extend range spans 170 to 200 mm. The RETRACT stroke remains completely unaffected by this mechanism. Because the piston area stays the same, the output force is identical to a standard ACQ of this bore.
This variant includes the -S magnet for position sensing via reed or electronic solid-state switches, and the -B male piston rod end (M30x1.5) for direct load coupling. Operating pressure spans 0.15 to 1.0 MPa, and the unit relies on a fixed NBR elastomer bumper at each end for deceleration rather than an adjustable air cushion. The external adjuster utilizes an M27x2.0 thread, and the pneumatic supply connects via a PT3/8 port.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 200 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 ACQJ125X200-30SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 ACQJ125X200-30SB Is Used
Heavy Press Fixturing
Dial in the exact 170-200 mm extend reach during press setup changes without machining new spacer blocks or swapping cylinders.
Automotive Assembly Stops
Modify the end-of-stroke clamping position on the fly to accommodate different vehicle subframe widths on a single line.
Large Mold Changeover
Test and lock trial end positions for large injection mold handling equipment, ensuring precise alignment before full operation.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-30SB the Right Cylinder?
Stepping down to the 100 mm bore drops the 0.5 MPa push force to 3927.0 N, whereas moving up to the 140 mm bore raises it to 7696.9 N. Choose this 125 mm bore when your application requires roughly 6135.9 N of push force at 0.5 MPa alongside on-machine extend tuning. If the end position never varies, a fixed-stroke ACQ cylinder suffices. When ordering, verify the 125 mm bore, 200 mm full stroke, 30 mm 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 ACQJ125X200-30SB FAQ
The usable extend range is 170-200 mm (200 mm full stroke minus the 30 mm window). The force is identical to a standard ACQ: 6135.9 N push and 5733.8 N pull at 0.5 MPa, 8590.3 N push at 0.7 MPa, and a maximum push of 1251 kgf at 1.0 MPa. The retract stroke is unaffected.
An external M27x2.0 threaded stop with a lock nut limits the extend length only; it changes stroke length, not the piston area or force. Deceleration relies on a fixed NBR elastomer bumper, not an adjustable air cushion. A plain ACQ-type does not hold its load on air loss, so use an external rod lock or pilot-operated check valve for fail-safe holding.
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Covers non-human-caused product damage.
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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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