Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 70mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MI25~40 Stainless Steel Mini Cylinder MI25X70CM
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work in tight spaces. The Ø25 mm bore uses a 1/8" port and a Ø10 mm piston rod with an M10x1.25 male thread. Its riveted stainless barrel and rod shrug off mild corrosion better than painted alternatives in damp or washdown settings. Plan for roughly 147 N of actual work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a safe 2:1 margin.
Built to ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises. The CM round end back cover gives specific rear-port and mounting orientation. Fixed TPU bumper pads absorb stroke-end impact, operating across a 30-800 mm/s speed range. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without upgrading to the -S variant.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM Is Used
Package Diverting Gate
Swings a routing flap on a packaging conveyor, using the 245 N thrust to push heavy cartons onto secondary chutes without stalling.
Parts Ejection Arm
Kicks completed metal stampings off a press bed, relying on the stainless build to endure oily shop environments and high cycle counts.
Vertical Stopper Pin
Lowers a 12.5 kg workholding barrier on a gravity-fed roller track, safely halting pallets at an inspection station.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM the Right Cylinder?
When sizing this 25 mm bore, compare it against the 20 mm option (157 N push @0.5 MPa) or the larger 32 mm (402 N push @0.5 MPa) to match your air supply. The 70 mm stroke is well within the 500 mm maximum, keeping rod bending stress low. If your process loses air or centres the valve, the piston will drift; the TPU pads only decelerate the end of travel and act as neither a lock nor a brake. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve. You can mount it via LB foot, FA flange, SDB pivot or TC trunnion hardware.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70CM FAQ
This 25 mm bore cylinder features a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. Its theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches will not function. You must select the -S magnet variant for position sensing. It uses fixed TPU bumper pads rather than an adjustable air cushion.
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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.
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