Airtac ACE Compact Cylinder ACE125X70
The AirTAC Airtac ACE Compact Cylinder ACE125X70 is a genuine double acting ISO 21287 compact air cylinder with a Ø125mm bore and 70mm stroke, 1/4" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ125 mm
- Stroke70 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×2.0
- CushionFixed TPU bumper (both ends)
- 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 ACE Compact Cylinder ACE125X70
This AirTAC ACE125X70 is a double acting ISO 21287 compact cylinder delivering 6135.9 N of push force and 5890.5 N of pull force at 0.5 MPa, with a theoretical maximum of 1251.4 kgf at 1.0 MPa. The 125 mm bore unit uses a 25 mm hard-chrome plated S45C steel rod and a hard-anodized aluminium alloy body that is about 50% shorter than an ISO 15552 profile cylinder, fitting into tight machine frames where full-length cylinders cannot go.
For a real-world application, plan for roughly 375 kg of safe vertical lifting at 0.5 MPa when you apply a 2:1 safety margin to the push force. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the 1/4" port handles flow for high-force operations. Since this unit has no -S code, it has no magnet, so CMSE or DMSE sensors cannot be mounted without ordering the optional magnet version.
Airtac ACE Compact Cylinder ACE125X70 Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE125X70 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×2.0 |
| 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 |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5890 N |
| 0.7 MPa | 8590 N | 8247 N |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE125X70
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 125 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACE Compact Cylinder ACE125X70 Is Used
Heavy Die Clamping
Mount this 125 mm bore unit on a stamping press die set to clamp thick steel plates with 6135.9 N of force at 0.5 MPa, using the short body to fit between die pillars.
Conveyor Transfer Push
Use the 70 mm stroke to push 300 kg pallets off a main conveyor onto a side spur in a bottling plant, where the compact body mounts under the roller deck.
Hydraulic Press Retrofit
Replace a worn pneumatic cylinder on a small shop press with this ACE125X70 to deliver 8590.3 N at 0.7 MPa for bending 10 mm steel brackets, leveraging the 1/4" port for fast cycling.
Is the Airtac ACE Compact Cylinder ACE125X70 the Right Cylinder?
When sizing this 125 mm bore cylinder, compare it against the 100 mm bore ACE100X70 which produces 3927.0 N push at 0.5 MPa, or step up to the 125 mm bore for applications needing over 6 kN of force. The 70 mm stroke suits short-travel clamping or pressing operations where the compact body saves valuable mounting space. For vertical lifting, remember this plain cylinder does not hold its position if air pressure drops, so add a pilot check valve or rod lock for load holding. Choose the -S code version if you need position sensing with CMSE or DMSE switches, and select from FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC mounting brackets to match your fixture.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE125X70 FAQ
At 0.5 MPa, push force is 6135.9 N and pull force is 5890.5 N. At 0.7 MPa, push force is 8590.3 N and pull force is 8246.7 N. The theoretical maximum force is 1251.4 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi).
The ACE125X70 body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight guarding, jigs, and gantries. The hard-anodized aluminium body with threaded covers allows easy service, and the fixed TPU bumper at both ends absorbs impact. The optional -S magnet enables CMSE or DMSE sensor mounting, but this unit without -S has no magnet.
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.
Request a Quote for Airtac ACE Compact Cylinder ACE125X70
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.