Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-100SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-100SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke90 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 ACQJ20X90-100SB
The AirTAC ACQJ20X90-100SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 0 up to 90 mm directly on the machine without swapping parts, while the retract stroke remains unaffected. It features a 10 mm piston rod and an M5x0.8 port.
Because the adjuster only alters stroke length and not the piston area, output force stays identical to a standard ACQ of this bore. You get 157.1 N push at 0.5 MPa, 117.8 N pull, and 219.9 N push at 0.7 MPa. The body includes fixed elastomer bumpers for end-of-stroke damping and magnetic grooves for position sensing.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-100SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-100SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 90 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 ACQJ20X90-100SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×90 | 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 ACQJ20X90-100SB Is Used
Machine Tending Setup
Dial in the exact extend position during initial commissioning of a lathe loading arm without machining new spacers.
Product Changeover Stops
Quickly alter the extend endpoint on a packaging line when switching between different carton depths.
Prototype Positioning
Safely test various extend end points on a new assembly fixture to find the optimal operating distance.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-100SB the Right Cylinder?
If you need less thrust, dropping to a 16 mm bore yields 100.5 N push at 0.5 MPa, whereas stepping up to a 25 mm bore provides 245.4 N. A fixed-stroke ACQ cylinder is sufficient if your end position never requires adjustment. To order this adjustable unit correctly, confirm the 20 mm bore, 90 mm full stroke, 100 mm window, the -S magnet for electronic or reed switches, and the -B male M8x1.25 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 ACQJ20X90-100SB FAQ
It delivers 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. The usable extend range is 0-90 mm because the 100 mm adjustment window can shorten the 90 mm full stroke.
An M8x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, leaving retract stroke and piston force completely unchanged. Deceleration relies on fixed elastomer bumpers rather than adjustable air cushions, so you should slow high-speed approaches or add external shock absorbers.
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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