Airtac ACE Compact Cylinder ACE50X70B
The AirTAC Airtac ACE Compact Cylinder ACE50X70B is a genuine double acting ISO 21287 compact air cylinder with a Ø50mm bore and 70mm stroke, 1/8" 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.
- BoreØ50 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.5
- 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 ACE50X70B
This AirTAC ACE50X70B is a double acting compact cylinder that uses air to both extend and retract the rod, with a fixed TPU bumper at each end to absorb impact. The 50 mm bore delivers 981.7 N of push force at 0.5 MPa, which translates to a practical working load of about 60 kg when you apply a 0.6 safety factor, making it a solid choice for medium-duty automation tasks.
The ISO 21287 short body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a full-length cylinder would not. The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear, and the male rod thread (B code) simplifies mounting with rod-end accessories, while the 1/8" port keeps plumbing compact.
Airtac ACE Compact Cylinder ACE50X70B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE50X70B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 ACE50X70B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 50 | 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 ACE50X70B Is Used
Jig Clamping on CNC Fixtures
Use the 981.7 N push force to clamp a workpiece in a milling fixture, where the short body fits under the spindle guard and the male rod thread connects to a custom clamp arm.
Carton Tamping in a Case Packer
In a packaging line, this cylinder can tamp down folded cartons before sealing, with the 70 mm stroke providing enough travel to settle the flaps and the fixed bumper preventing shock to the frame.
Stop Gate on a Pallet Conveyor
Mount this cylinder with an LB foot bracket to raise a stop pin that halts pallets on a conveyor, using the 881.2 N pull force to retract the pin quickly and the compact body to fit under the conveyor bed.
Is the Airtac ACE Compact Cylinder ACE50X70B the Right Cylinder?
For a lighter application, the ACE40X70 offers 628.3 N push at 0.5 MPa, while stepping up to the ACE63X70 gives you 1558.6 N push at the same pressure, so you can match the force to your actual load. Since this model has no magnet (no S code), it cannot be used with CMSE or DMSE sensors; order the -S version if you need position sensing. The fixed TPU bumper only decelerates at the ends, so for holding a load in position when air is lost, add a rod lock or pilot check valve.
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 ACE50X70B FAQ
At 0.5 MPa, the push force is 981.7 N and the pull force is 881.2 N. At 0.7 MPa, push is 1374.4 N and pull is 1233.7 N. The theoretical maximum force is 200.2 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi).
The ACE50X70B follows ISO 21287, so its body is about 50% shorter than an ISO 15552 profile cylinder, saving space in tight fixtures. However, this model has no magnet because it lacks the -S code, so CMSE or DMSE sensors cannot be mounted on it. Order the -S version to get the optional magnet for sensor feedback.
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