Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S
The AirTAC Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø125mm bore and 300mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ125 mm
- Full stroke300 mm
- Port sizePT3/8
- Adjuster threadM27×2.0
About the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S
The AirTAC ACQJ125X300-30S is a double-acting, single-rod JIS compact cylinder featuring a big 125mm bore and a 300mm full stroke. An external M27x2.0 threaded stop with a lock nut restricts the extend end position, providing a usable forward travel range of 270-300mm. The return stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force equals a standard ACQ of this size, delivering 6135.9N push and 5733.8N pull at 0.5MPa. The unit incorporates fixed NBR elastomer bumpers at both ends and a built-in piston magnet (-S) compatible with reed or electronic solid-state switches. Operating pressure spans 0.15-1.0MPa.
Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S Technical Specifications
| Model | Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø125 mm |
| Full stroke | 300 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 ACQJ125X300-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 ACQJ125X300-30S Is Used
Heavy Press Tuning
Dialing in the exact clamping depth on a large metal-forming press without machining custom spacers for every new die set.
Pallet Changeover Stops
Adapting end positions rapidly on automated conveyor lines when switching between different pallet or product footprint sizes.
Large Fixture Setup
Testing multiple extend endpoints during prototype assembly station trials to find the optimal holding position for bulky components.
Is the Airtac ACQJ125~160 Adjustable Compact Cylinder ACQJ125X300-30S the Right Cylinder?
For 0.5MPa push needs around 7696.9N, step up to the 160mm bore; if 6135.9N is excessive, the 140mm bore yields 7696.9N. Choose this specific big-bore compact variant when your fixture requires trial end positions or product-changeover stops. Verify your ordering essentials: 125mm bore, 300mm full stroke, 30mm adjust window, S magnet, and the default female M22x2.5 rod end.
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 ACQJ125X300-30S FAQ
At 0.5MPa it provides 6135.9N push and 5733.8N pull; at 0.7MPa push is 8590.3N; maximum push is 1251kgf at 1.0MPa. The full stroke is 300mm, and the external stop allows an adjustable extend range of 270-300mm.
No, the adjuster only limits forward travel length, leaving the piston area and force identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers at both ends, not adjustable air cushions, so external shock absorbers are recommended for high-energy loads.
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 ACQJ125X300-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.