Airtac MTG Stainless Steel Mini Cylinder MTG40X100S
The AirTAC Airtac MTG Stainless Steel Mini Cylinder MTG40X100S is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke100 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed anti-impact 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 MTG Stainless Steel Mini Cylinder MTG40X100S
The MTG40X100S is a single acting, spring-return PULL cylinder from AirTAC's JIS round-body mini series: the internal spring holds the rod extended at rest, and compressed air retracts (pulls) it through the 100 mm stroke. At the largest MTG bore of 40 mm it delivers a net pull of 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa, already measured after the spring, so the figures you see are what reaches the load. Because only one air line is needed, plumbing stays minimal and the valve circuit is a single solenoid valve instead of a five-port pair.
Construction suits damp and washdown-adjacent duty: a SUS304 stainless barrel, a hard-chrome plated 16 mm rod with a male M14x1.5 thread, riveted covers and a fixed anti-impact bumper pad that softens the stroke ends. The 1/8" port is common to every MTG bore, and the fitted magnet (the S in the code) accepts CMSG, DMSG or EMSG switches for end-of-stroke signalling. Plan on a realistic working pull of about 203 N, roughly a 20 kg load, at 0.5 MPa. If you later need two-way powered travel or a stroke beyond the 150 mm spring-return limit, the double-acting MG series is the next step.
Airtac MTG Stainless Steel Mini Cylinder MTG40X100S Technical Specifications
| Model | Airtac MTG Stainless Steel Mini Cylinder MTG40X100S |
|---|---|
| Series | MTG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| 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 anti-impact bumper pads |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 339.1 N |
| 0.7 MPa | 550.1 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 MTG Stainless Steel Mini Cylinder MTG40X100S
| MTG | JIS 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. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MTG Stainless Steel Mini Cylinder MTG40X100S Is Used
Retracting a locking pin
Air pulls the pin out of a fixture or die on command, and the spring pushes it back into the locked position the moment pressure drops, giving a fail-safe engage without a second valve port.
Tensioning a belt or chain
Mounted on a sliding idler, the cylinder draws the tensioner back against the spring, and the 339.1 N pull at 0.5 MPa keeps light conveyor belts and chains at a steady set tension.
Closing a machine shutter or guard
The spring holds a slide shutter open at rest, and the air stroke closes it over a chute or access window; on air loss the guard reopens rather than jamming mid-travel.
Is the Airtac MTG Stainless Steel Mini Cylinder MTG40X100S the Right Cylinder?
Choose the MTG40X100S when your motion is a one-way pull of about 340 N or less and the rod should stand extended whenever air is lost. It is the strongest MTG bore: if 339.1 N at 0.5 MPa leaves too little margin, no larger MTG exists, so step up to the double-acting MG series; if the duty needs under 225 N, the MTG32 saves air and cost. Remember the spring-extends / air-retracts behaviour, the 0.2 MPa (29 psi) minimum working pressure, and the 150 mm maximum standard stroke that the return spring imposes. Mounting choices are LB foot, FA flange, CB clevis and SDB pivot, plus I and Y rod knuckles; threads are PT as standard with G and NPT options. This SKU already carries the -S magnet, so CMSG, DMSG or EMSG switches can be clipped on without further options.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA / CB / SDB) & knuckle
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 On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MTG Stainless Steel Mini Cylinder MTG40X100S FAQ
The net pull, already after the return spring, is 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa. Operating pressure is 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, a speed range of 50-800 mm/s, and a working temperature of -20 to +70 C. The 1/8" port is identical on all MTG bores.
The spring extends the rod to its rest position; applying air retracts it, so the work stroke is the pull and one air line suffices. On air loss the rod returns to extended, which is the opposite fail-state of the MSG push version, and neither variant holds a load. The fitted magnet lets CMSG, DMSG or EMSG switches report rod position, and for powered two-way travel you would move to the double-acting MG series.
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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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