LANSING CNC Double Column Vertical Boring and Turning Mill Model 2835
The LANSING 2835 is designed with latest technical design and manufactured with quality material and fittings, with best process for manufacturing and assembling.
In the turning mode
- Turning the front, cylindrical, conical and general rotation inner and outer surfaces
- Turning the inner and outer threads on the cylindrical and conical surfaces, with a constant and variable lead
- Frontal and peripheral grinding of frontal and cylindrical, inner and outer surfaces (machines equipped with a grinding attachment)
In the milling mode
- Milling the surfaces and co-axial slots with the head feed (axis X or Z) or with the rotation feed of the table (axis C)
- Milling the eccentric slots and general forms with the interpolation of axes X, Z and C
- Drilling and boring the openings in the axis and outside the axis of the table with the usage of a precise positioning
- Thread cutting in the axis and outside the axis of the table
- Milling, boring and cutting the threads under various angles towards the axis of the table (machines equipped with angular milling head)
Material such as cast iron, cast steel, alloy steel and fabricated steel can be machined.
Machining capacity
- Max. Turning diameter mm 3,500
- Max. Height of turning over table mm 2,500 * * )
Table
- Diameter mm 2,800
- Maximum load kg 50,000 * )
- Maximum torque kNm 136
- Main drive motor kW 2 x 71
- Speed, infinitely variable
Range I rpm 0.8 - 26
Range II rpm 3.3 - 100
- No. Of clamping jaws pcs 8
Cross rail
- Vertical travel mm 2,100
-Traverse speed mm.min -1,500
R.H. railhead
- Feeds, infinitely variable mm.min -1 0.1 - 8 000
- Rapid traverse mm.min -18,000
- Cross section of ram mm x mm 340 x 340
- Vertical ram travel mm 1,600
- Max. Cross section of tool mm x mm 50 x 50
- Max. Cutting force KN 80 * )
Machine dimensions
- Length mm 9,500
- Width mm 8,000
- Height - total mm 7,885
- Over floor mm 6 975 * * )
Machine weight
- Basic version kg 61,000
* ) The value is limited in accordance with appropriate diagram of the Manual.
* * ) Height of machine can be modified (increased or decreased)
Main drive
The drive of the table by 2 digitally controlled AC motors via two-speed gearbox.
Main parts: 2 motors, pinion box, gear boxes ZF
Technical Data
Transport weight of the main drive box (without motor) kg 1,500
2 motors SIEMENS 1PH7 224-ND
Power kW 2 x 71
Max.speed rpm 4 500
Weight kg 860
Main drive lubrication
Operating pressure MPa 1,7 - 2
Volume of oil l 80
Power of pump l.min-1 5.3
Machine frame
The frame of double column machine consists of R.H. and L.H. columns, top rail and cross rail. The columns and cross rail are box-shaped castings with numerous ribs, the top rail is welded structure.
The cross rail can be moved vertically on the columns. Cross rail at working position is laid on positioning bars, which are firmly fixed on both column s. At this position it is blocked by means of hydraulic clamping units. Cross beam is absolutely parallel with clamping plate since corresponding steps on both positioning bars are ground at the same time and position. Distance of the steps is 200 mm. Coding of each step is done through serial limit switch and combination of stops. Lower guide surface of the crossbeam is lined with hardened strips.
Cross rail is provided with a device checking the wear of the elevating nut; a safety nut eliminates the danger of cross rail drop.
Guideways of cross rail and bottom parts of columns are covered.
Heads
The R.H. railhead and L.H. rail head (option) are controlled by CNC, type SINUMERIK 840D (DE), make SIEMENS.
All the heads have:
- Slideways lined with plastic
- Ball screw with double nut in feed drives
- Planetary gearbox “ZF-servo plan”
- Rams with hardened and ground guideways
- Safety brake on the ball screw
- Central, remote controlled lubrication of all guiding surfaces
- 1 pc tool holder for turning prepared for external cooling (for machine with ATC not delivered for R. H. rail head)
R.H.cross rail
Transport weight kg 4 500
Electrical equipment
Supply mains 3 x 400 V, 50/60 Hz (3 x 440 V, 60 Hz)
Voltage fluctuation allowance ± 10 %
Total input of the machine 195 kva
The electrical equipment of the machine is combination of delivery by:
- SIEMENS - SCR, feed AC motors, main AC motor, milling spindle AC motor, AC motor for auxiliary drives, CNC
- HEIDENHAIN - scales and encoder
- Electrical cabinets (SIEMENS components)
SINUMERIK 840D (DE)
B. optional extras
B1 Boring and milling attachment
B1.1 Boring and milling attachment in R.H. rail head
Table positioning device (C-axis)
Hydraulic clamping device for table clamping during boring and milling operations.
B2 Automatic tool changer
B2.1 Automatic tool changer for R.H. railhead
Consists of:
- Automatic tool holder clamping device in the R.H. railhead ram
- Tool magazine with 6 position for tool holders driven by stepping motor located on the right side of the machine under the cross rail
- Auxiliary crane for manipulation with tool holders
B2.3 Pick-up magazine for heavy tool heads and grinding attachment
It is located on the right cross rail part under the revolving tool magazine and it makes possible automatic clamping of heavy milling tool holders or grinding equipment and their backward seating. Before automatic cycle starting there is need to insert the tool holder into the Pick-up magazine manually by means of the crane.
B2.4 Automatic tool changer with double disk magazine for R.H. railhead
Consists of:
- Automatic tool holder clamping device in the R.H. railhead ram
- Double disk tool magazine driven by 2 stepping motors located on the right side of machine under the cross rail. There are 6 positions for tool holders in the lower disk and 16 positions for rotary tools (taper ISO 50, shank DIN 69871) in the upper one.
• Auxiliary crane for manipulation with tool holders
Chip conveyor
Coolant attachment
Job measuring system with RENISHAW probe
Tool measuring system with RENISHAW probe
Tool monitor PROMETEC
ALL SPECIFICATIONS ARE APPROXIMATE & NOT BINDING
For complete information and our " - " PRICE
Call: (718) 492-7400
Fax: (718) 439-3930
E-mail: info@sandsmachinery.com