Airtac MKD Multi-position Clamping Cylinder MKD20X5S
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD20X5S is a genuine MK multi-mount cylinder (double rod), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact. As an MK unit a fixed rod stops the piston rod rotating.
- TypeMulti-mount, double rod
- SeriesMK (no-rotating)
- Bore20 mm
- Push thrust @0.5 MPa157.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWith magnet (sensor-ready)
- ThreadPT
- 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 MKD Multi-position Clamping Cylinder MKD20X5S
The AirTAC MKD20X5S is a double-rod, no-rotating multi-mount cylinder with a 20 mm bore and a very short 5 mm stroke. The compact square body fixes from six directions (front, back, left, right, top and bottom) and mounts side by side to save space, with magnetic-switch slots around the body and high guide precision without added lubrication. The short stroke suits tiny lifts, ejections and confirm movements, and the double-rod layout serves both ends. At 0.5 MPa the bore-20 double-acting push figure is a theoretical force of about 157.1 N, with a bumper cushion, 0.15-1.0 MPa (22-145 psi) operating range and 30-500 mm/s speed on filtered air.
This is a genuine AirTAC part. MK is the no-rotating family: a fixed rod, no-rotating plate and brass bushing keep the piston rod from turning, unlike the standard MD family. The trailing S shows a magnet is built in for switch sensing. Materials are typical (aluminium-alloy body and covers, stainless or S45C rod, NBR seals, TPU bumper); exact dimensions for this short stroke are confirmed from the datasheet on request.
Airtac MKD Multi-position Clamping Cylinder MKD20X5S Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD20X5S |
|---|---|
| Type | Multi-mount cylinder, double rod |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 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.
How to choose
The 20 mm bore gives the bore-20 double-acting push thrust of about 157.1 N at 0.5 MPa over just 5 mm of travel, ideal for short confirm or eject motions. MKD means no-rotating and double rod: rotation is prevented and both ends carry a rod; switch to MD standard if rotation is acceptable. The 5 mm stroke is far inside the bore-20 double-acting table, which runs up to 60 mm, so this SKU suits tight fixtures rather than long travels. The S suffix shows a magnet is fitted for switch slots; omit the S if not needed. Ports are M5x0.8 with PT thread as shown, and a G-thread version exists. Allowable side load is not stated here, so route that check to us.
Applications
Presence-check clamps on assembly stations
The short 5 mm stroke confirms a part is seated in a nest, with the magnet and switch slots feeding a signal back to the controller.
Micro-adjust part alignment
Mounted side by side under a guide rail, the no-rotating rod nudges small parts into alignment before the next operation, from the tightest footprint.
Instrument sample indexing
The double-rod body ejects a sample vial a precise 5 mm between assay steps, and the square body bolts from the top or bottom of the instrument deck.
FAQ
How do I read the model code MKD20X5S?
MKD is the MK-family double-rod, no-rotating, double-acting cylinder; 20 is the bore in mm, X5 is the 5 mm stroke, and the trailing S shows a magnet is included. Thread is PT by default, with G available.
What limits a very short stroke like 5 mm?
The covers on a multi-mount body are short, so the useful stroke stays modest; the bore-20 double-acting table reaches 60 mm, but very short strokes like this are for compact confirm and eject jobs. Exact body dimensions and allowable side load come from the datasheet, which we confirm on request.