Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700CM is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke700 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 MI40X700CM
Delivering serious thrust for a compact format, this double-acting round-body mini cylinder generates 628.3 N of push force at 0.5 MPa. The stainless-steel barrel and Ø16 mm piston rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. A 700 mm stroke is a non-standard, made-to-order length for this Ø40 bore, extending its reach well past the 500 mm catalogue maximum.
Equipped with fixed TPU bumper pads to decelerate the stroke end, the riveted construction remains light and space-efficient. It breathes through a 1/4 inch port and features a CM round rear cover for clean axial mounting. 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. Note that this SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG switches without upgrading to the -S variant.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700CM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 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 MI40X700CM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 MI40X700CM Is Used
Long-Reach Divert Gate
Actuates an extended routing flap on a stainless-steel washdown conveyor, using its 700 mm stroke to clear wide product lanes.
Pallet Pusher Assembly
Pushes heavy cardboard cartons into a palletising zone, utilising the 628.3 N push force to overcome box friction.
Textile Loom Beam Shift
Shifts heavy fabric beams laterally between processing stations, relying on the stainless build to endure humid manufacturing environments.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700CM the Right Cylinder?
Because this 700 mm stroke is a made-to-order length exceeding the standard 500 mm maximum, expect extended lead times. When sizing, the Ø32 bore offers 402.2 N push at 0.5 MPa if you need less force, while the Ø40 is the largest available in this series. The extended rod is susceptible to bending under side loads, so rigid guidance and a true linear load path are critical to prevent premature seal wear.
The CM round end cover dictates your rear mounting orientation. Remember that venting or losing air pressure will cause the piston to drift, as the TPU pads only soften end-of-stroke impacts and do not act as a brake. To suspend a load safely mid-stroke, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI40X700CM FAQ
This Ø40 mm bore cylinder features a 1/4 inch port and a M12x1.25 male rod thread. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMSG magnetic switches. You would need the -S variant for sensor compatibility. Additionally, it uses fixed TPU bumper pads rather than an adjustable air cushion, and as a Ø40 bore, it is a round-body mini cylinder that does not conform to the ISO 6432 mounting standard.
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