MiniLathe
- 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)
F-45-90
Inside beveling and boring
(2CDI insert)
IB-45-37
IB-45-10
Outside bevelling
(2CDI insert)
OB-45-45
OB-45-37
OB-45-30
OB-45-10
J bevelling
(2CDJ-Rxx insert)
JP-45-45
JP-45-37
JP-45-30
Compound Beveling
(CB-45 insert)
CB-10/37
(others on request)
Advantages of minilathe
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.
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.
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
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
Machine is equipped with 8” standard cutter head. Optional 12” available on request.
Other accessories
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
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
PDE MOTOR
The PipeLathe can also be supplied as an electric version, with a 3200 Watt heavy duty motor.
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.
