What the MR273 flying cold saw does
The ceiling of the single-blade range. Ø273 with 8 mm wall is where one blade, one cut, one machine still makes sense — and where every extra millimetre of wall belongs to the twin-blade milling saw in the next range.
The MR273 shares the heavy end of the rack family: 30 kW cutting motor, servo carriage, hydraulic clamp, a 4,000 to 12,000 mm cut length window for transmission-type product. Customers choose it over the twin-blade machine when their wall stays inside 8 mm and they want the simpler, cheaper single-pass machine. When the specification pushes past 8 mm, we send them one page over — the same diameter number with an M after it, cutting 12 mm on two blades.
Technical specifications
| Model | Round tube OD | Square section | Rectangular section | Wall thickness | Line speed | Cut length | Clamping | Saw blade | Saw motor |
|---|---|---|---|---|---|---|---|---|---|
| MR273 | Ø102 – Ø273 | 80 – 200 | — | 2.5 – 8.0 | 40 m/min | 2,000 – 12,000 | Hydraulic (-H) | HSS / TCT Ø600 | 30 kW |
What comes with the machine
- Rack-driven carriage — hardened gear rack and steel pinion, the cutting torque goes through the tooth, not through friction.
- Clamping — pneumatic (-P) or hydraulic (-H), built into the model you order.
- Saw head — HSS / TCT Ø600, with blade tensioner and coolant arrangement.
- Control — servo feed and a controller that holds cut length across the full speed range.
- Guard and extraction — enclosed cutting with chip extraction.
How the -P / -H clamp choice works
Every model in this range is ordered with the clamp written into the model number: -P for the pneumatic clamp (fast, light, thin and medium wall) or -H for the hydraulic clamp (high force, steady holding, heavy wall and large diameter). At the smaller sizes -P is the normal quotation; from around 3 mm wall and upwards the hydraulic clamp becomes the configuration we recommend, and on the largest models it is the only one we supply.
Where it is normally installed
The saw sits on the exit side of the sizing stand and tracks the moving tube, so the cut stays square and the length stays accurate without stopping the line. We confirm the station layout against your mill arrangement, including the run-out table and the tube handling after the cut.
All Flying Cold Saws (rack range)
| Model | Round tube OD (mm) | Wall thickness (mm) | Line speed (m/min) | Saw blade | Saw motor |
|---|---|---|---|---|---|
| MR25 | Ø7.6 – Ø25 | 0.5 – 1.5 | 120 | HSS / TCT Ø350 | 5.5 kW |
| MR32 | Ø7.6 – Ø38 | 0.6 – 2.3 | 120 | HSS / TCT Ø350 | 7.5 kW |
| MR50 | Ø20 – Ø63.5 | 0.8 – 3.0 | 120 | HSS / TCT Ø400 | 11 kW |
| MR60 | Ø25 – Ø76 | 1.0 – 3.5 | 120 | HSS / TCT Ø450 | 11 kW |
| MR76 | Ø32 – Ø89 | 1.0 – 4.0 | 90 | HSS / TCT | 15 – 22 kW |
| MR89 | Ø38 – Ø102 | 1.2 – 4.5 | 80 | HSS / TCT | 15 – 22 kW |
| MR114 | Ø50 – Ø114 | 1.2 – 5.0 | 70 | HSS / TCT | 30 kW |
| MR127 | Ø63 – Ø140 | 1.2 – 5.5 | 60 | HSS / TCT | 30 kW |
| MR168 | Ø76 – Ø168 | 1.2 – 6.0 (6 mm) / 1.5 – 7.0 (7 mm) | 60 / 40 | HSS / TCT Ø600 | 22 kW servo |
| MR219 | Ø89 – Ø219 | 2.0 – 8.0 | 40 | HSS / TCT Ø600 | 30 kW |
| MR273 | Ø102 – Ø273 | 2.5 – 8.0 | 40 | HSS / TCT Ø600 | 30 kW |
Questions buyers ask about the MR273
Need roll tooling, a flying cold saw, or a complete tube mill line?



