
The AirTAC Airtac MDD Multi-position Double Rod Cylinder MDD10X40S is a genuine MD multi-mount cylinder (double rod), 10 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 39.3 N of push force at 0.5 MPa. A bumper cushions the impact.
The MDD10X40S is a compact multi-mount cylinder from AirTAC's MD family: a square-body actuator you can fix from six directions - front, back, left, right, top and bottom - and place side by side with its neighbours to save space on crowded panels. This model is the double rod type in a 10 mm bore with a 40 mm stroke, so the rod exits both covers and one cylinder can carry or drive something on each end. Double acting air moves the rod both ways at 0.15-1.0 MPa (22-145 psi); at 0.5 MPa the facts sheet gives 39.3 N push and 33.0 N pull for this bore. Cushioning is a bumper, not an air cushion.
This is a genuine AirTAC part. The MD family is the standard multi-mount cylinder; the MK family adds a no-rotating plate if you need the rod held square. The magnet follows the SKU exactly: the trailing S on MDD10X40S means a magnet is fitted, seating in the switch slots around the body. Magnetic-switch slots around the body, high guide precision and no added lubricant come as standard. Overall dimensions depend on the stroke, so we confirm exact sizing from the datasheet on request.
| Model | Airtac MDD Multi-position Double Rod Cylinder MDD10X40S |
|---|---|
| Type | Multi-mount cylinder, double rod |
| Series | MD (standard) |
| Bore | 10 mm |
| Push thrust @0.5 MPa | 39.3 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
Bore sets the force: this 10 mm bore delivers 39.3 N push (33.0 N pull) at 0.5 MPa; step up to 16 mm for 100.5 N if you need more. MDD is the double rod version of the standard MD multi-mount - the rod extends from both covers - while MK variants prevent rod rotation. Acting is double acting, so air drives the rod out and back; single acting push or pull types are separate SKUs. The 40 mm stroke is fixed by this SKU, and the short body keeps the covers close, so avoid stretching an over-long stroke and route any side-load question to us. A trailing S adds the magnet; no trailing G here means PT thread ports (M5x0.8 on this bore), with G available on the G-suffixed SKU.
Fix the body under a fixture deck and use one rod end to clamp a small part while the other end signals or lifts an adjacent clamp pad, all from a 10 mm bore body that bolts in from below.
Line several units side by side along an assembly jig to extend and retract locating pins; the six-direction fixing lets each cylinder mount from whichever face the jig plate allows.
Mount through a conveyor side rail to raise and lower a stopper blade between product flows, using the double rod to drive a linked gate on the far side of the line.
The trailing S means a magnet is built into the piston, so magnetic switches can be seated in the slots around the body without external brackets. The equivalent SKU without the S carries no magnet. Magnet is optional on this family, not standard, so always match the SKU you order to whether your switches need it.
The square body fixes from six directions - front, back, left, right, top and bottom - so you can mount it face-on, through a side rail or from below, and place units side by side on dense panels. Overall dimensions vary with the stroke, so we confirm exact dimensions and any side-load limits from the datasheet rather than quoting figures here.