Airtac MGD Double Rod Mini Cylinder MGD20X450
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD20X450 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke450 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- 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 MGD Double Rod Mini Cylinder MGD20X450
The AirTAC MGD20X450 is a double acting, double rod JIS mini cylinder with a 20 mm bore and a 450 mm stroke. A piston rod exits both the front and back covers with the same M8x1.25 male thread at each end, so the two rod ends move together and the output force is equal in both directions: about 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 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 mini format: a SUS304 stainless barrel with hard-chrome plated rods, riveted covers and a two-way lubricant-storing piston seal, suited to damp and washdown environments. Fixed anti-impact bumper pads decelerate the stroke ends, and the cylinder runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi), a temperature range of -20 to +70 C and speeds of 30-800 mm/s. Ports are 1/8" on all four sides of the body. Note that the 450 mm stroke exceeds the 300 mm maximum standard stroke for this bore, so it is supplied as a non-standard, made-to-order length.
Airtac MGD Double Rod Mini Cylinder MGD20X450 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD20X450 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MGD Double Rod Mini Cylinder MGD20X450
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 20 | 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.
Where the Airtac MGD Double Rod Mini Cylinder MGD20X450 Is Used
Anti-rotation light slide
The through-rod on the MGD20X450 resists rotation, keeping a small gripper or guide plate square through the full 450 mm travel with equal force of about 131.9 N in each direction.
Twin-point push
With a rod exiting both covers, one cylinder drives two light pushers or stops at once, delivering roughly 79 N of practical working force per side at 0.5 MPa.
Rear-end flag mounting
The back rod end can carry a stop or flag mechanism while the front rod does the work, an option that needs no magnet on this non-S model.
Is the Airtac MGD Double Rod Mini Cylinder MGD20X450 the Right Cylinder?
At 131.9 N per direction at 0.5 MPa, this 20 mm bore suits light loads: apply the usual 0.6 rule of thumb and keep the working load near 79 N, or about 8 kg in a vertical orientation. If your load needs more force, step up to the MGD25 (about 206 N each way) or MGD32 (about 346 N); the MGD40 is the largest in the series at about 528 N. For bores of 50 or 63 mm, or if you need an adjustable air cushion instead of the fixed bumper pad, move to the MGCD series; for a conventional single-rod cylinder, the MG is the equivalent. The 450 mm stroke is above the 300 mm standard maximum for this bore, so order it as a made-to-order length and support the long rod against side load. Mounting is FA flange or LB foot, with I and Y rod knuckles available; no SDB or CB pivots are offered on the double-rod body. This unit has no magnet fitted, so position sensing is not possible; add the S code to enable CMSG, DMSG or EMSG switches.
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) & knuckle
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 On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGD Double Rod Mini Cylinder MGD20X450 FAQ
As a double rod cylinder, force is equal both ways: 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa, with a theoretical maximum of 26.9 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the air must be filtered to 40 um. Ports are 1/8" and the rod thread is M8x1.25 at both ends.
The MGD has a rod exiting both covers, so force is identical extending and retracting, the through-rod resists rotation and side load, and the rear end can carry a stop, flag or second load. The single-rod MG has a larger push than pull. This MGD20X450 has no magnet, so no sensor can be mounted; order the S version to use CMSG, DMSG or EMSG switches. The fixed bumper pads soften the stroke ends but do not hold or brake a load, so use an external rod lock or pilot check valve for load holding.
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Standard models are processed and dispatched in 3-5 business days.
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