Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-40S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-40S 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 ACQJ125X200-40S
The AirTAC ACQJ125X200-40S is a double-acting JIS compact cylinder featuring a 125mm bore and a 200mm full stroke. An external M27x2.0 threaded stop with a lock nut limits the rod extension, providing a usable extend range of 160 to 200mm. Retraction travel remains fixed at the standard 200mm. Because the piston area is unchanged, output force equals a standard ACQ of this size.
This big-bore variant delivers 6135.9N push and 5733.8N pull at 0.5MPa, peaking at 1251kgf maximum push at 1.0MPa. It includes a -S piston magnet compatible with reed or solid-state switches, and uses fixed NBR elastomer bumpers at each end for end-of-stroke deceleration. The PT3/8 port and 32mm rod ensure robust pneumatic capacity for heavy-duty machinery.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-40S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-40S |
|---|---|
| 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 ACQJ125X200-40S
| 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 ACQJ125X200-40S Is Used
Heavy Press Setup
Dial in the exact 160-200mm extension on a large metal stamping press without machining new spacers for different material thicknesses.
Product Changeover
Rapidly reposition the end stop on an automotive assembly line fixture when switching between large chassis components.
Pallet Positioning
Fine-tune the pusher rod end point on an industrial packaging conveyor to handle varying oversized pallet dimensions safely.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X200-40S the Right Cylinder?
Selecting this 125mm bore provides 6135.9N push at 0.5MPa; stepping down to a 100mm bore yields 3927.0N push, while a 140mm bore offers 7696.9N push. A fixed-stroke ACQ suffices if your extend endpoint never requires shifting. When ordering, confirm the 200mm full stroke, 40mm adjustment window, -S magnet, and the default M22x2.5 female rod-end 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 ACQJ125X200-40S 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 usable extend range is 160-200mm (200mm full stroke minus the 40mm window).
No, the external M27x2.0 stop only shortens the extend travel, leaving piston area and force identical to a standard ACQ. Deceleration relies on fixed NBR elastomer bumpers, not adjustable air cushions. Note that a plain cylinder drifts on air loss; use an external rod lock 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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