Airtac MTF Mini Cylinder MTF40X100U
The AirTAC Airtac MTF Mini Cylinder MTF40X100U is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- 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 MTF Mini Cylinder MTF40X100U
Delivering 434.8 N of pull force at 0.5 MPa, this AirTAC MTF40X100U is a single-acting, spring-return mini cylinder built to JIS standards. The internal spring normally holds the 16 mm rod extended; supplying air to the 1/4" port retracts the load. Because it lacks the -S suffix, this specific SKU cannot accept CMSG, DMSG, or EMSG magnetic switches. It features a U flat-end rear cover and a SUS304 stainless steel barrel that resists mild corrosion and washdown environments.
The riveted rolling-packed construction uses aluminium covers and fixed TPU bumper pads to decelerate the stroke ends, with no adjustable air cushion. For tensioning tasks, the quoted pull force is already net of the spring, yielding a safe working load of roughly 261 N. This translates to lifting or holding about 22.2 kg vertically with a 2:1 safety margin. The body is purposefully shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length without claiming ISO compliance.
Airtac MTF Mini Cylinder MTF40X100U Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X100U |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 434.8 N |
| 0.7 MPa | 645.8 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MTF Mini Cylinder MTF40X100U
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MTF Mini Cylinder MTF40X100U Is Used
Heavy-Duty Tensioning
Pulls cables or webs with a safe working load near 261 N, releasing the tension instantly when air is removed and the spring extends.
Fail-Safe Valve Actuation
Holds a process valve open via air retraction; a drop in air pressure lets the spring snap the rod back to the extended, closed position.
Spring-Open Gate Control
Uses the 645.8 N @0.7 MPa pull to draw a heavy access gate closed, with the spring automatically pushing it open upon air loss.
Is the Airtac MTF Mini Cylinder MTF40X100U the Right Cylinder?
When sizing this 40 mm bore, compare its 434.8 N @0.5 MPa pull against the next size down: the MTF32 provides 266.8 N @0.5 MPa. Since 40 mm is the largest available MTF bore, exceeding this capacity requires an external rod lock or a different cylinder family. This single-acting pull configuration is optimal for spring-open / air-close tasks, tensioning, and fail-safe-to-extended operations where air loss safely drives the rod outward.
Ensure your air supply provides at least the 0.2 MPa floor to overcome the internal spring. Mounting options include LB foot, FA flange, SDB pivot-block, and TC trunnion brackets. If position sensing is required, select the -S magnet variant instead, as this base model cannot host a sensor.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 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/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MTF Mini Cylinder MTF40X100U FAQ
The single-acting pull force is 434.8 N at 0.5 MPa and 645.8 N at 0.7 MPa, measured net of the spring. It requires a minimum operating pressure of 0.2 MPa to overcome the spring and retract the rod, with a maximum pressure of 1.0 MPa.
No, this SKU lacks the internal magnet, so CMSG, DMSG, or EMSG switches cannot be used. You must choose the -S variant for position sensing. The spring extends the rod at rest, meaning it fails to the extended position on air loss and will not hold a mid-stroke load.
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