Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø25mm bore and 20mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ25 mm
- Full stroke20 mm
- Port sizeM5×0.8
- Adjuster threadM10×1.25
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10
The AirTAC ACQJ25X20-10 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable forward range of 10 to 20 mm, tunable directly on your equipment without swapping parts, while the retract stroke remains completely unaffected.
Because the adjuster only alters travel length and not piston area, output matches a standard ACQ of this bore: 245.4 N push and 188.9 N pull at 0.5 MPa. The 25 mm bore uses an M5x0.8 port, a Ø12 mm rod, and fixed elastomer bumpers. Body grooves are present for sensors, though this specific unit ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Full stroke | 20 mm |
| Adjuster thread | M10×1.25 |
| Port size | M5×0.8 |
| 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 | M6×1.0 (F) / M10×1.25 (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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 189 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 Is Used
Machining Fixture Stops
Dial in the exact 10 to 20 mm clamp extension on a CNC machining center during initial setup or tooling changes without machining new spacers.
Carton Forming Tippers
Adjust the pusher end point on the fly to accommodate varying package sizes or folding depths on a packaging line changeover.
Bending Pilot Pins
Fine-tune the trial end position of a locating pin in a small metal forming press to find the optimal material contact point.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 the Right Cylinder?
If your application needs less thrust, the 20 mm bore provides 157.1 N push at 0.5 MPa; stepping up to the 32 mm bore yields 402.1 N. Choose this 25 mm bore when your fixture requires precise 10 to 20 mm forward positioning. If a fixed 20 mm end position is always sufficient, a standard ACQ series cylinder will suffice. When ordering, confirm the full stroke, the 10 mm adjustment window, the female M6x1.0 rod thread, and whether you need the S magnet option for reed or solid-state switches.
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 ACQJ12~25 Adjustable Compact Cylinder ACQJ25X20-10 FAQ
It delivers 245.4 N push and 188.9 N pull at 0.5 MPa, 343.6 N push at 0.7 MPa, and a maximum push of 50 kgf at 1.0 MPa. The usable extend range is 10 to 20 mm, governed by the 10 mm adjustment window.
An M10x1.25 threaded stop with a lock nut mechanically limits the forward travel, leaving retract unchanged. Force is identical to a standard ACQ because piston area stays the same. Deceleration relies on fixed elastomer bumpers, not an adjustable air cushion.
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
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