MiniLathe

Recommended for: pipe facing, pipe bevelling

KRAIS Tube Expanders
  • Most powerful machine within this size range on the market today. Utilises a power- ful 2.2kW (3 HP) pneumatic motor that is entirely engineered and manufactured by KRAIS for the largest end prep systems.
  • MiniLathe comes with one of 3 gearboxes as a standard. It gives a wide choice for operator. No need for extra gearbox that reduces the RPM and multiplies the torque – it comes as standard!
  • Innovative 6 point locking system assures maximum stability during all machining operations.
  • Self-centering 2,75” one piece locking shaft with build in jaws, eliminates the issue of broken or loosening retaining springs and o-rings.
  • Only one mandrel and 10 Jaw sets needed to cover machines entire range.
  • Wide clamps produce superior clamping force for chatter free end preps.
  • Fully portable for on-site and Fab-shop work.
  • Available for sale or rent.

Standard working range

* other capacity and locking range are available – please consult factory!

APPLICATION RANGE LOCKING RANGE (ID)
72 – 406 mm 72 – 400 mm
2,800 – 16,000” 2,800 – 15,700”

Motor parameters

FEED STROKE POWER FREE SPEED TORQUE
50 mm 2” 3,0 Hp Depends on gear
Air use: 70 cfm 2,2 m3/min Air pressure: 90 PSI 6,2 Bar
Body dimensions 25 x 13 x 12” 640 x 330 x 300 mm Body weight: 75 Lbs 35 kg

Choose your gearbox

This tool comes with one of 3 gearboxes as a standard. Torque/speed depends on gear configuration:

GEARBOX 11 11 RPM 3850 Nm 2840 Ft.Lbs
GEARBOX 15 15 RPM 2615 Nm 1960 Ft.Lbs
GEARBOX 21 21 RPM 1770 Nm 1327 Ft.Lbs

Locking ranges

JAWS: ML-42

ML-42-A-300
ML-42-A-225

Range [mm] Range [inch] Segment A Segment B Segment C
Min Max Min Max
70 85 2,756 3,346
85 100 3,346 3,937 ML-42-A-75
100 115 3,937 4,528 ML-42-A-150
115 130 4,528 5,118 ML-42-A-225
130 145 5,118 5,709 ML-42-A-300
145 160 5,709 6,299 ML-42-A-375
160 175 6,299 6,890 ML-42-C
175 190 6,890 7,480 ML-42-A-75 ML-42-C
190 205 7,480 8,071 ML-42-A-150 ML-42-C
205 220 8,071 8,661 ML-42-A-225 ML-42-C
220 235 8,661 9,252 ML-42-A-300 ML-42-C
235 250 9,252 9,843 ML-42-A-375 ML-42-C
250 265 9,843 10,433 ML-42-B ML-42-C
265 280 10,433 11,024 ML-42-A-75 ML-42-B ML-42-C
280 295 11,024 11,614 ML-42-A-150 ML-42-B ML-42-C
295 310 11,614 12,205 ML-42-A-225 ML-42-B ML-42-C
310 325 12,205 12,795 ML-42-A-300 ML-42-B ML-42-C
325 340 12,795 13,386 ML-42-A-375 ML-42-B ML-42-C
340 355 13,386 13,976 ML-42-A-300
ML-42-A-150
ML-42-B ML-42-C
355 370 13,976 14,567 ML-42-B ML-42-C
370 385 14,567 15,157 ML-42-A-375
ML-42-A-225
ML-42-B ML-42-C
385 400 15,157 15,748 ML-42-A-375
ML-42-A-300
ML-42-B ML-42-C

Holders for MiniLathe

Facing
(2CDI insert)

KRAIS Tube Expanders

F-45-90

Inside beveling and boring
(2CDI insert)

KRAIS Tube Expanders

IB-45-37
IB-45-10

Outside bevelling
(2CDI insert)

KRAIS Tube Expanders

OB-45-45
OB-45-37
OB-45-30
OB-45-10

J bevelling
(2CDJ-Rxx insert)

KRAIS Tube Expanders

JP-45-45
JP-45-37
JP-45-30

Compound Beveling
(CB-45 insert)

KRAIS Tube Expanders

CB-10/37
(others on request)

Advantages of minilathe

KRAIS Tube Expanders

UNIQUE SHAFT DESIGN

70 mm (2,75”) shaft, assures rigidity when machining heavy wall pipe. The jaws are fully contained within the shaft with no need for retaining springs or O-rings that easily brake or get lost.

KRAIS Tube Expanders

POWERFUL MOTOR UNIT

Powerful and efficient drives dedicated for our Lathe series beveling machines. 11 rpm and 3850 Nm (2840 Ft.Lbs) torque on the cutter blade is a standard feature.

KRAIS Tube Expanders

6 POINTS LOCKING JAWS

The innovative, 6 points jaws, effectively lock the machine within the pipe, allowing safe, efficient and smooth processing of the tube end.

Heavy duty pendant

KRAIS Tube Expanders

HEAVY DUTY PENDANT

Machine is equipped with a heavy duty pendant. This can be attached to both sides of the motor for operator convenience.

Expandable holders

KRAIS Tube Expanders

Machine is equipped with 8” standard cutter head. Optional 12” available on request.

Other accessories

KRAIS Tube Expanders

SLIDE BEARING

As an option we can supply a bronze slide bearing that delivers more stability and rigidity while machining a very hard materials and heavy wall pipes.

Optional motor units

KRAIS Tube Expanders

DUDE-2000-4-SPEED

For thin wall application (up to 1” / 25,4 mm) is an electric motor DUDE-2000-4-SPEED, which offers 4 speed: 120-210-380-650 RPM

KRAIS Tube Expanders

PDE MOTOR

The PipeLathe can also be supplied as an electric version, with a 3200 Watt heavy duty motor.

KRAIS Tube Expanders

PDH MOTOR

Optional super strong hydraulic motor. Constructed on the basis of a small hydraulic motor and multistage planetary gear box. HyperLathe version generates 11 rpm and up to 8200 Nm (6050 Ft.Lbs) torque on cutter blade at constant cutting speed.

Example tool application

In order to facilitate the assembly of the machine in the pipe, the machine optionally can be equipped with a double-sided yoke with removable extensions so that two people can freely install into the processed pipe.