Airtac MI25~40 Stainless Steel Mini Cylinder MI40X75SCMTC
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X75SCMTC is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 MI40X75SCMTC
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty actuation where smaller bores stall. The stainless-steel barrel and Ø16 rod shrug off mild corrosion, making it superior to painted alternatives in damp or washdown environments. It features a 1/4" port and M12x1.25 male rod thread.
Plan for roughly 377 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 32 kg vertically. The riveted construction keeps the body compact, while fixed TPU bumper pads absorb the stroke-end impact. Because this SKU includes the -S magnet, it supports CMSG, DMSG and EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X75SCMTC Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X75SCMTC |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MI40X75SCMTC
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MI40X75SCMTC Is Used
Stamping Press Ejection
Uses the 628.3 N push force to knock heavy stamped metal parts out of a die on an automotive production line.
Pallet Diverter Arm
Swings via the TC trunnion mount to push heavy logistics pallets onto a secondary packaging conveyor track.
Vertical Gate Lifting
Raises a 30 kg stainless access gate in a food facility, relying on the corrosion-resistant build and safe lift margin.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X75SCMTC the Right Cylinder?
As the largest bore in the MI family, there is no larger standard size to step up to; if 628.3 N at 0.5 MPa is insufficient, you must switch to a different cylinder series entirely. Stepping down, the Ø32 bore provides 402.2 N of push force, offering a lighter alternative if the 40 mm capacity is overkill. The CM round end and TC trunnion mount provide pivot flexibility for your framework.
Remember that fixed TPU bumpers only decelerate the stroke end; they do not function as a lock. If air pressure drops or the valve is centered, the piston will drift, so fit an external rod lock or pilot check valve for suspended loads. The 75 mm stroke is well within the 500 mm maximum, keeping rod bending stress minimal.
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 MI40X75SCMTC FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M12x1.25.
No, the base MI uses fixed TPU bumper pads that decelerate the stroke end, not an adjustable air cushion; you would need the MIC variant for that. However, this model includes the -S magnet, allowing you to mount CMSG, DMSG or EMSG switches for position sensing.
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.
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