The K70 is a heavy-duty, right-angle, pneumatic torque-controlled motor for the expansion of Boiler tubes in Steam and Mud Drums, Fire Tube Boilers, and similar equipment.
This machine is particularly well suited to extended periods of operation and is equipped with a Roll Throttle as standard. (A lever throttle is available as an option).
The machine has a unique head design which features a fully enclosed bearing for long life.
With Industry input, the K70 has been engineered to precisely and consistently expand boiler tubes.
3 machines are available to suit tubes of nominal size 2”, 2 ½”, and 4”
- Heavy duty & highly durable
- Ensures precise, repeat expansions
- Reliable & easy to use
- Automatic reverse trigger control
|
MODEL |
TUBE CAPACITY |
FREE SPEED |
MIN TORQUE |
MAX TORQUE |
LENGTH |
WEIGHT |
STANDARD |
OPTIONAL |
|
|
K73-RT-375 |
2” |
50.8mm |
375 RPM |
40 NM 30 ft.lbs |
110 NM 82 ft.lbs |
530mm 20” |
5.8 KG 13 lbs |
3/4" |
1/2" |
|
K73-RT-190 |
2 ½” |
63.5mm |
190 RPM |
95 NM 70 ft.lbs |
200 NM 140 ft.lbs |
530mm 20” |
5.8 KG 13 lbs |
3/4" |
1/2" |
|
K72-RT-90 |
4” |
101.6mm |
90 RPM |
200 NM 150 ft.lbs |
410 NM 305 ft.lbs |
550mm 22” |
6.7 kg 15 lbs |
3/4" 1" |
- |
Comparison chart
| Specification |  K70 |
K20 |
K50 |
K60 |
|---|---|---|---|---|
| Tube Capacity | 50.8mm to 101.6mm (2" to 4") |
6.3mm to 12.7mm (1/4" to 1/2") |
19mm to 32mm (3/4" to 1 1/4") |
38.1mm to 63.5mm (1 1/2" to 2 1/2") |
| Max Torque | 110NM to 410NM (85ft.lbs to 305ft.lbs) |
0.9 NM to 8.47NM (2.42 ft.lbs to 6.25ft.lbs) |
12.2NM to 36NM (108in.lb to 318in.lb) |
41.6NM to 135.5NM (30.7in.lb to 100in.lb) |
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