
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD25X450 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø25mm bore and 450mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The MGD25X450 is a double acting, double-rod JIS mini cylinder with a 25 mm bore and a 450 mm stroke. A piston rod exits both the front and back covers with the same M10x1.25 male thread at each end, so the two rod ends move together and the output force is equal in both directions: about 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. Because both sides of the piston see the rod-side area, there is no separate push and pull figure, and the through-rod resists rotation and side load while keeping stroke-end position repeatable.
Construction follows the JIS round-body format: a SUS304 stainless barrel with a hard-chrome plated rod, riveted covers and a two-way lubricant-storing piston seal, suited to damp and washdown surroundings. Fixed anti-impact bumper pads decelerate the stroke ends; they are not an adjustable air cushion. The 450 mm stroke exceeds the 300 mm maximum standard stroke for this bore, so this model is a made-to-order item. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, a speed range of 30-800 mm/s and a temperature range of -20 to +70 C. As a rule of thumb, keep the vertical load to about 12 kg, roughly 0.6 of the 206.1 N force at 0.5 MPa.
| Model | Airtac MGD Double Rod Mini Cylinder MGD25X450 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 anti-impact bumper pads |
| Max standard stroke | Up to 300 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
The through-rod resists rotation on a 450 mm stroke, keeping a pusher or gate square to the product at both ends of the travel.
With 206.1 N available at each rod end simultaneously, one cylinder can drive two grippers or lift points with equal force in both directions.
The back rod end carries a stop or switch flag, giving a repeatable stroke-end signal point on long-stroke conveyor or elevator duty.
At 206.1 N per direction at 0.5 MPa, the 25 mm bore suits medium loads; step down to the 20 mm bore for lighter duty or up to the 32 mm or 40 mm bore for more force, as these are the largest MGD sizes. For bores of 50 mm or 63 mm, or if you need an adjustable variable cushion instead of the fixed bumper pad, choose the double-rod MGCD; for a conventional single-rod cylinder, the MG is the equivalent. The through-rod is the right pick when you need anti-rotation guidance, a rear-mounted stop or switch flag, or a second load driven from the back rod end. Mounting is FA flange or LB foot, with I and Y rod knuckles available; there is no SDB or CB pivot option on the double-rod design. This unit has no magnet, so no CMSG, DMSG or ESG sensor can be fitted; order the S code if position sensing is needed. Note the 450 mm stroke is non-standard for this bore and is made to order, and on long strokes keep side load low and support the rod to protect the bearings.
Quick checklist
Because a rod occupies both sides of the piston, force is equal both ways: 206.1 N at 0.5 MPa and 288.5 N at 0.7 MPa, with a theoretical maximum of 42 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), the fluid is air filtered to 40 um, temperature range is -20 to +70 C, and speed is 30-800 mm/s. Ports are 1/8" and the rod thread is M10x1.25 at both ends.
The MGD25X450 has a rod exiting both covers, so force is identical extending and retracting, the rod resists rotation and side load, and the rear end can carry a stop flag or a second load; the single-rod MG has a larger push than pull and no rear rod. This model has no magnet, so no CMSG, DMSG or EMSG sensor can be mounted; order the S code version for sensing. It also has fixed bumper pads only, not the adjustable cushion of the MGCD, and it will not hold a load on air loss, so use an external rod lock or pilot check valve for a held load.
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