Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke100 mm
- Port sizeM5×0.8
- Adjuster threadM8×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S
The AirTAC ACQJ20X100-30S is a double-acting JIS compact cylinder with a 100mm stroke and a 30mm adjustable extend window. An external M8x1.25 threaded stop with lock nut lets you set the forward end position anywhere between 70 and 100mm directly on the machine. The return stroke remains fixed at the full 100mm.
Because the piston area is unchanged, output force matches a standard ACQ20 exactly: 157.1N push and 117.8N pull at 0.5MPa. The unit features a 10mm rod, M5x0.8 ports, fixed elastomer bumpers, and a built-in magnet for position sensing.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 100 mm |
| Adjuster thread | M8×1.25 |
| 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 | M5×0.8 (F) / M8×1.25 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 ACQJ20X100-30S
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during part changeovers without machining new spacers.
Package Diverter Arms
Set diverter arm extension depth on a packaging line to handle varying box sizes on the fly.
Prototype Press Positions
Experiment with different end positions on a lab press to find the optimal forming distance before finalizing tooling.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S the Right Cylinder?
This 20mm bore provides 157.1N push at 0.5MPa, sitting between the 12mm (56.5N) and 25mm (245.4N) options. If your extend target never varies, a fixed-stroke ACQ20X100 is simpler. When ordering the ACQJ version, confirm the 100mm base stroke, 30mm window, -S magnet, and female M5x0.8 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-30S FAQ
It delivers 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa. The full stroke is 100mm with a 30mm window, giving a usable extend range of 70-100mm.
No, the adjuster only limits the extend length, so force is identical to a standard ACQ20. Deceleration relies on fixed elastomer bumpers, and the built-in magnet works with reed or solid-state switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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