
The AirTAC Airtac MTG Stainless Steel Mini Cylinder MTG40X100 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.
The AirTAC MTG40X100 is a single acting, spring-return PULL cylinder in the JIS round-body MTG mini series. With a 40 mm bore and 100 mm stroke, it delivers a net pull of about 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa, already measured after the internal spring. The spring holds the rod EXTENDED at rest, and compressed air on one 1/8" port RETRACTS (pulls) the rod, so a single air line covers the whole work stroke. Working pressure runs from 0.2 MPa (28 psi) up to 1.0 MPa (145 psi), with a 1.5 MPa (215 psi) proof pressure and a 50-800 mm/s speed range. If air is lost, the spring simply pushes the rod back out to its extended rest position, so this cylinder is not a load-holding device and the fixed anti-impact bumper pad is not a brake.
Construction suits damp and washdown-adjacent lines: a SUS304 stainless barrel with a riveted/rolled cover design and a hard-chrome (20 um) carbon-steel rod threaded M14x1.5. A two-way lubricant-storing piston seal reduces maintenance intervals. For position feedback, order the -S option to fit CMSG, DMSG or EMSG switches; the base MTG40X100 carries no magnet. Mounting choices include LB foot, FA flange, CB clevis and SDB pivot, plus I and Y rod knuckles. As a practical sizing check, a realistic working pull is roughly 0.6 of the rated figure, so about 203 N, which halves to a safe vertical load of roughly 10 kg at 0.5 MPa.
| Model | Airtac MTG Stainless Steel Mini Cylinder MTG40X100 |
|---|---|
| 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.
| 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.
| 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.
The spring keeps the pin extended for engagement, and one air signal pulls it out of the fixture with about 339.1 N at 0.5 MPa, ideal for clamps and indexing pins that must fail to the engaged state.
Use the pull stroke to draw packaging tape, film or a light web through a guide on a packaging or conveyor line; the 50-800 mm/s speed range covers steady, repeatable one-way draws.
Air pulls a slide, shutter or diverting gate closed on demand while the spring reopens it automatically when pressure drops, giving a fail-safe open/close cycle with a single valve.
Choose the MTG40X100 when your one-way pull needs the largest MTG force class: about 339.1 N at 0.5 MPa on a 40 mm bore with a 100 mm stroke. If your load needs less, the MTG20, MTG25 or MTG32 pull cylinders are smaller and cheaper; if you need two-way powered travel or a stroke beyond the 150 mm spring-return limit of this series, step up to the double-acting MG. Remember the spring-extends / air-retracts behaviour: the rod comes out on power loss, and the minimum working pressure is 0.2 MPa (28 psi), so size your supply accordingly. Specify the -S option if you need CMSG/DMSG/EMSG sensing, and pick LB foot, FA flange, CB clevis or SDB pivot mounting (with I or Y knuckles) to match your fixture. Ports are 1/8" on every MTG bore, and threads are PT as standard with G or NPT available.
Quick checklist
The net pull, already after the return spring, is 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa on the 40 mm bore. Operating pressure is 0.2-1.0 MPa (28-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 50-800 mm/s, and the air must be filtered to 40 um. The port is 1/8" and the rod thread is M14x1.5.
In the MTG the spring extends the rod and air retracts (pulls) it, so on air loss the rod returns to its extended rest position. The MSG is the mirror image: air pushes the rod out and the spring pulls it back in. The MG is double acting, with air on both sides for powered two-way travel and strokes beyond the 150 mm spring-return limit. Add the -S option to fit CMSG, DMSG or EMSG switches; without the magnet no sensor can be mounted.
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