KRAIS Tube Expanders

PipeMill is a pneumatic powered tube facing, bevelling and weld removal machine. The PipeMill is a rugged, fast and powerful weld end preparation lathe for various pipes including stainless steel and other exotic alloys. A standard machine is equipped with a locking system to cover sizes of 50,8 to 172 mm ID (2.000” to 6.800”) with a 250 mm cutting head.

Standard working range

APPLICATION RANGE STANDARD LOCKING
50 – 279 mm 50 – 319 mm
1,968 – 10,984” 1,968 – 12,559””

Motor parameters

FEED STROKE POWER FREE SPEED TORQUE
50 mm 1,968” 1,3 hp Depends on gear
Air use: 70 cfm 2,2
m3/min
Body width: 5,7” 145 mm
Body height: 21,5” 550 mm Body weight: 52,9 Lbs 24 kg

Standard set up

KRAIS Tube Expanders

250 MM (9,8”)

Cutter head special for the largest machines. Very rigid. Designed to fasten the wide range of cutting inserts.

Available gearbox configurations

This tool comes with one chosen gearbox as a standard. Torque/speed depends on gear configuration:

GEARBOX 15 15 RPM 2544 Nm 1908 Ft.Lbs
GEARBOX 20 20 RPM 1883 Nm 1415 Ft.Lbs
GEARBOX 28 28 RPM 1290 Nm 969 Ft.Lbs
GEARBOX 37 37 RPM 971 Nm 730 Ft.Lbs

Locking ranges with standard jaws

JAWS: SM-42

RANGE [MM] RANGE [INCH] EXTENSIONS
MIN MAX MIN MAX A B C
50,0 65,0 1,969 2,559
65,0 80,0 2,559 3,150 ML-42-A-75
80,0 95,0 3,150 3,740 ML-42-A-150
95,0 110,0 3,740 4,331 ML-42-A-225
110,0 125,0 4,331 4,921 ML-42-A-300
125,0 140,0 4,921 5,512 ML-42-A-375
140,0 155,0 5,512 6,102 SML-42-C
155,0 170,0 6,102 6,693 ML-42-A-75 SML-42-C
170,0 184,5 6,693 7,264 ML-42-A-150 SML-42-C
184,5 199,0 7,264 7,835 ML-42-A-225 SML-42-C
199,0 214,0 7,835 8,425 ML-42-A-300 SML-42-C
214,0 229,0 8,425 9,016 ML-42-A-375 SML-42-C
229,0 244,5 9,016 9,626 L-42-B SML-42-C
244,5 259,5 9,626 10,217 ML-42-A-75 L-42-B SML-42-C
259,5 274,0 10,217 10,787 ML-42-A-150 L-42-B SML-42-C
274,0 289,0 10,787 11,378 ML-42-A-225 L-42-B SML-42-C
289,0 304,0 11,378 11,969 ML-42-A-300 L-42-B SML-42-C
304,0 319,0 11,969 12,559 ML-42-A-375 L-42-B SML-42-C

Optional working range

APPLICATION RANGE STANDARD LOCKING
50 – 319 mm 50 – 319 mm
1,968 – 12,559”” 1,968 – 12,559””

Optional heads and cutters

KRAIS Tube Expanders

290 MM (11,4”)

Biggest head for KRAIS Mini&HyperMill tools. Very rigid. Designed to fasten the wide range of cutting inserts.

KRAIS Tube Expanders

OB-45-37

Holder for outside tube beveling.

KRAIS Tube Expanders

IB-45-37

Holder for inside tube beveling.

KRAIS Tube Expanders

F-45-90

Holder for tube end facing .

KRAIS Tube Expanders

CUTTERS SET

Cutters made of HSS with 6% cobalt, for use without additional holders.

Example tool application

KRAIS Tube Expanders

PIPE 10″

SCHEDULE 120

KRAIS Tube Expanders

PIPE 8″

SCHEDULE 160

Other

KRAIS Tube Expanders

SAV-500 SPEED ADJUSTMENT VALVE

Perfect solution for all our pneumatic driven bevelling machines for adjusting cutting speed to suit to the machined tube diameter.

Tool in action