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K20 Pneumatic Torque-Controlled Tube Expansion Motor

Efficient and Accurate Rolling for Heat Exchangers and Condensers

The K20 is a heavy duty pneumatic torque Controlled motor for the expansion of tubes used in Heat Exchangers, Condensers and Coolers.

K20 pneumatic rolling motor is designed for the fast and accurate torque controlled rolling of tubes from 1/4 1/2 OD (6.3mm 12.7mm OD). This uniquely designed tool with automatic reverse, expands tubes to a preset torque, at which point it automatically trips over to its reverse rotation, backing itself out of the tube ready for the next expansion. The process is fast and effortless making it the ideal tool for production rolling applications. Our K-20 Models are available in 500, 1800 & 2500 rpm (see chart for suggested Tube Diameters). All models are furnished with their own carrying case & instruction manual.

  • Heavy duty & highly durable
  • Ensures precise, repeat expansions
  • Reliable & easy to use
  • Automatic reverse trigger control

MODEL

TUBE CAPACITY

FREE
SPEED

MAX

TORQUE

LENGTH

WEIGHT

CHUCK

SIZE

 K20-2500

6.3mm

 1/4”

 2500 RPM

 0.9 NM

2.42 ft.lbs 

 205mm

8”

 1.1 KG

2.42 lbs

 1/4”

 K20-1800

9.5mm

3/8”

 1800 RPM

3.05 NM

2.25 ft.lbs

 205m

8”

 1.1 KG

2.42 lbs

1/4”

K20-550

 12.7mm

 1/2”

 550 RPM

8.47 NM

6.25 ft.lbs

 219mm

8 3/5”

 1.2 KG

2.64 lbs

1/4”

Comparison chart

Specification

K20


K50


K60


K70
Tube Capacity

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")

50.8mm to 101.6mm (2" to 4")

Max Torque

 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)

110NM to 410NM (85ft.lbs to 305ft.lbs)

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