Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700SCM 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 MI40X700SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles demanding linear motion tasks. The 40 mm bore pairs with a substantial 700 mm stroke, which exceeds the 500 mm standard maximum and is produced as a made-to-order unit. Its stainless-steel barrel and piston rod shrug off mild corrosion, giving it a real edge in damp or washdown environments where painted steel fails. The 1/4" port feeds the chamber efficiently, while fixed TPU bumper pads absorb the impact at stroke extremes.
For practical sizing, plan for roughly 377 N of actual work at 0.5 MPa, which safely lifts about 32 kg vertically with a 2:1 margin. The riveted construction keeps the body compact, and the built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing. A CM round end caps the rear, offering a clean, versatile mounting orientation for custom machinery.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700SCM |
|---|---|
| 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 MI40X700SCM
| 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 MI40X700SCM Is Used
Heavy-Duty Product Diversion
Uses the 628.3 N push force at 0.5 MPa to positively deflect heavy packaged goods onto secondary packaging lines without stalling.
Long-Stroke Vertical Lift
Leverages the 700 mm travel to lower lifting platforms, safely moving parts weighing up to 32 kg in automated assembly cells.
Washdown Test Equipment
Relies on the stainless steel round-body construction to withstand damp, mildly corrosive laboratory environments during repeated cycling.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X700SCM the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm cylinder drops the 0.5 MPa push force to 402.2 N, while no larger MI series option exists above it. Because the 700 mm stroke is non-standard and lengthy, carefully manage side loads to prevent rod bending and premature seal wear. The CM round end cover dictates the rear mounting profile, so verify your bracket alignment. Since this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors.
Remember that fixed TPU bumpers only decelerate the piston near the stroke end; they do not act as a brake. If air pressure drops or the valve is centred, the piston will drift and cannot hold a load. To maintain vertical position, 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 MI40X700SCM FAQ
This 40 mm bore cylinder features a 1/4" air port. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the piston at the stroke end and do not function as a locking brake. If air is lost, the piston drifts; you must use an external rod lock or pilot check valve to hold a vertical load.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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