High Performance
CNC LATHES
TURNING CENTERS
High Performance
CNC LATHES
• Rigid Precise linear guideways ensure the longevity and performance of each and every machine. • Increased rapid travel speed improves cutting efficiency. • The highly rigid servo driven turret provides heavy duty cutting capability. • The full enclosure design prevents the chips and coolant from splashing providing a safe and clean working environment. • The auto oil lubrication system provides rails, ballscrews and key units precise and adjustable oil volume control
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High Rigidity, High Accuracy CONSTRUCTION DESIGN • The main machine body is designed as a one-piece cast construction. The 30-degree slant bed provides the spindle head, turret and tail stock with an excellent supporting base with low gravity. • Enhanced rib design in the major construction areas provides extra rigidity for heavy duty or high speed cutting. This added rigidity also prolongs the cutting tool service life. • The major construction elements are made using FC30 Meehanite cast iron, which is a very stable precision-proven structure. • The X and Z axes are driven by absolute AC servo motors. This high torque/high power motor provides fast acceleration and deceleration movement while the absolute encoder technology eliminates the usage of a limit switch. The home position operation is no longer needed when the machine is first powered up.
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High Accuracy TRANSMISSION SYSTEM
Collision Protection Device
• The machine is equipped with an axis collision protection device which can absorb and reduce the collision force. Machine accuracy is maintained if any axis malfunction occurs • The X and Z axes uses heavy duty linear guideways to ensure high rigidity low noise and low friction machining to achieve high speed feederates and contour cutting accuracy.
• High speed feedrates are 787 ”/min in X-axis and 945 ”/min in Z-axis. • A direct drive coupler is used to link the servo motors and high precision ball screws in both the X and Z-axes. • The auto-lube system provides the proper lubrication to both the ball screws and their support bearings providing long life and high precision. • Extremely large C3 grade ball screws are used for both high rigidity and high precision.
High Speed & High Accuracy Linear Guide Ways
• The zero backlash linear guideway ensures consistent cutting service during curve or slope cutting. • Suitable for high speed travel and helps to minimize power consumption. • The linear guides’ rolling contact instead of sliding contact, reduces friction loss and increases positioning accuracy. • Loading capacity and rigidity is excellent for multiple direction cutting. • The roller type linear guideways high durability guarantees long service life and high accuracy. 4
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Spindle Head and SPINDLE SYSTEM
Spindle System
• Super precision P4 grade spindle bearings are arranged with an optimized span to maximize stability and ensure extreme cutting accuracy over a long service life. • The spindle bearing arrangement: double row roller bearing x 1 and angular ball bearings x 2 at the front side; and double row roller bearing x 1 at the rear side to provide maximum support.
Heat Emission System
• The thermal fin design is standard on the spindle head. The generated heat is efficiently removed by circulating air around the head.
Spindle Power Transmission System
• A high-performance V-belt drive is used for power transmission. A belt drive reduces maintenance and the heat generated by a gear type drive. Using the pulley’s gear ratio, maximum spindle torque can be obtained and the maximum cutting capacity is achieved. • Rigid tapping capability is standard on the machine. Setting up the threading operation is easy providing high accuracy while achieving maximum product output. • The spindle can be orientated and stopped at multiple positions. This is handy for any specific angle operation, as well as for the manual workpiece loading/unloading.
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High Performance ACCESSORIES
Servo Turret
• The robust turret is driven by a servo motor providing adjacent tool to tool time of 0.9 seconds and opposite tool change time of 2.0 seconds. • A large turret shaft is used for its high rigidity and high positioning accuracy. The turret rigidity ensures cutting capability for a wide variety of applications. • There is no interference between the maximum inner tool and the chuck or workpiece when the turret is fully loaded.
Tail Stock Unit
• The high accuracy tail stock provides high rigidity and loading durability. The movement of the tail stock quill is programmable with hydraulically adjustable thrust force.
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High Efficient CHIPS REMOVAL SYSTEM • The chip conveyer system is located under the front side of the machine. This system can easily remove the large volume of chips generated by the turning process.
Separated Coolant Tank System • The isolated coolant tank is designed for easy for maintenance. The high pressure pump and large coolant flow can efficiently remove the heat generated by the machining process.
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Spindle Torque
OUTPUT CHART
• The main spindle motor has both high torque at low speed and high speed characteristics providing the best range of overall performance.
Outer Turning Process (Cutting Conditions) Model
LT-350 LT-400 LT-520
OD Before Cutting: in (mm)
OD After Turning: in (mm)
Spindle Speed:
Feedrate: Cutting Depth: in (mm)/rev in (mm) RPM
3.54 (90) 3.37 (85.6) 1000 .015 (.39) .086 (2.2) 2.44 (62) 2.06 (52.4) 1000 .015 (.39) .189 (4.8) 3.62 (92) 3.15 (80) 1000 .015 (.39) .236 (6.0)
Inner Turning Process (Cutting Conditions) Model
LT-350 LT-400 LT-520 8
OD Before Cutting: in (mm)
OD After Turning: in (mm)
2.75 (70) 2.99 (76) 2.91 (74) 3.15 (80) 3.07 (78) 3.38 (86)
Spindle Load:
Chip Removal Rate: cu.in (cc)/min
105% 14.4 (236) 133% 20.5 (336) 125% 41.5 (680)
Spindle Speed:
Feedrate: Cutting Depth: in (mm)/rev in (mm) RPM
Spindle Load:
682 646 816
.009 (.24) .118 (3.0) .013 (.33) .118 (3.0) 0.14 (.36) .157 (4.0)
115% 7.1 (117) 110% 9.4 (154) 105% 18.4 (301)
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Chip Removal Rate: cu.in (cc)/min
CNC Control OPERATION SYSTEM
POWERED BY
Hardware - Includes state-of-the art 64 bit RISC processing unit with ultra-high speed fiber-optic backplane. Allows for extensive program look-ahead (337 blocks) and 33,700 BPM processing. Distributed architecture that delegates routine motion control operations to intelligent servo and spindle amplifiers for reduced cycle processing time. Industry standard CF memory cards, Ethernet, and TCP/IP networking technologies. Software – Includes user interface (HMI) optimized for ease of operation and intuitive access to critical information such as editing, set-up, and monitoring functions. On-board electronic manual information for quick reference as well as conversational program generation for rapid part programming and program validation in 3D solid model graphic. Operation – Includes playback function for on-the-fly program edits via teach mode. Multi-program background edit and checking, Modal program research feature to restart cutting operations at the exact point of interrupt or power failure. Tool life monitoring for rapid setup.
Technology – High-speed and high-accuracy machining with advanced control technologies. Complete Nano processing from the program values to the servo commands that are rolled up into an Easy Navigation System with the highest performance levels.
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Advanced QUALITY CONTROL
Standard Workpiece Test
Laser Inspection
• All the machines are manufactured under the control of ISO9001 quality management system.
• The standard workpiece test is executed to ensure turning accuracy.
• The full stroke is inspected and compensated by the laser measurement instrument. • Standard process for every machine built is a 100 hour test run.
Rail Parallelism Inspection
• The linear guide ways are calibrated to ensure the parallelism during their installation.
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Rail Straightness Measurement
• Every linear guide rail is inspected by an electrical level gauge to ensure accuracy before final installation.
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Automation
CAPABILITY
Tool Setter Option
• The Reinshaw HPMA automatic tool setter serves as an optional, fully automatic tool measurement process. The system can measure the tools automatically while the pre-set work piece quantity is reached. This option enhances production performance and accuracy.
Part Catcher Unit Option
• Max. workpiece dia.: 1.97” (50mm) • Max. workpiece length: 5.12” (130mm) • Max. workpiece weight: 4.4 lb. (2kg)
Workpiece Bucket Option
• The workpiece bucket is large enough to provide convenient space for automation.
Bar Feeder System Option • The bar feeder is a very useful unit for mass production applications. The Bar Feeder System can be integrated with the Part Catcher for full automation.
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Technical INFORMATION
Machine Specifications
Units
LT-350
LT-400
LT-520
Travel X-Axis
inch (mm)
5.51 (140)
7.09 (180)
8.66 (220)
Z-Axis
inch (mm)
13.77 (350)
20.87 (530)
27.95 (710)
Spindle Spindle Speed
RPM
40-6,000
30-4,000
30-3,500
Spindle Nose
A2-5
A2-6
A2-8
Front Bearing Inner Dia.
inch (mm)
3.14 (80)
3.94 (100)
5.12 (130)
Thru-Hole Dia.
inch (mm)
2.20 (56)
2.48 (63)
3.46 (88)
Capacity Chuck Size
inch (mm)
6 (152.4)
8 (203)
10 (254)
Swing Over Bed
inch (mm)
13.77 (350)
15.75 (400)
20.47 (520)
Swing Over Side
inch (mm)
11.02 (280)
12.6 (320)
15.75 (400)
Center Distance
inch (mm)
17.91 (455
25.39 (645)
33.27 (845)
Standard Turning Dia.
inch (mm)
7.48 (190)
8.5 (216)
11.30 (287)
Max Turning Dia.
inch (mm)
9.44 (240)
12.6 (320)
15.75 (400)
Max Turning Length
inch (mm)
13.77 (350)
20.86 (530)
27.95 (710)
Bar Capacity
inch (mm)
1.77 (45)
2.05 (52)
3.07 (78)
Turret No. of Stations
12
12
10
Size of Holder (sq)
inch (mm)
.787 (20)
.984 (25)
.984 (25)
Boring Holder Dia.
inch (mm)
1.25 (32)
1.57 (40)
1.97 (50)
Tailstock Travel
inch (mm)
11.41 (290)
17.13 (435)
22.83 (580)
Quill Stroke
inch (mm)
3.94 (100)
3.94 (100)
5.90 (150)
Size of Taper
MT4
MT5
MT5
Quil I.D.
2.95 (75)
3.54 (90)
4.33 (110)
inch (mm)
Feedrate
12
X-Rapid
in/min (M/min)
944 (24)
794 (20)
794 (20)
Z-Rapid
in/min (M/min)
1,180 (30)
944 (24)
794 (20)
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Units
LT-350
LT-400
LT-520
Motor Spindle Motor
HP (Kw)
7.4/10 (5.5/7.5) 10/15 (7.5/11)
20/25 (15/18.5)
X-Servo Motor
HP (Kw)
1.6 (1.2)
1.6 (1.2)
1.6 (1.2)
Z-Servo Motor
HP (Kw)
2.4 (1.8)
3.5 (2.5)
3.5 (2.5)
Turret-Servo Motor
HP (Kw)
1.0 (.75)
1.6 (1.2)
1.6 (1.2)
Control Unit Mitsubishi
M70-V
M70-V
M70-V
Machine Size Weight
lb (kg)
7,716 (3,500)
9,480 (4,300)
11,023 (5,000)
Width
inch (mm)
74.2 (1,885)
88.6 (2,250)
112.2 (2,850)
Height
inch (mm)
67.7 (1,720)
69.7 (1,770)
74.6 (1,895)
Depth
inch (mm)
63.0 (1600)
65.7 (1,670)
70.9 (1,800)
Miscellanious Power Requirement
V/ KVA
220 / 15
220 / 15
220 / 25
Compressed Air Supply
PSI (kg/cm²)
85 (6)
85 (6)
85 (6)
Coolant Capacity
gal (L)
42 (160)
53 (200)
61 (230)
Control Unit Specs. 64-bit RISC Processor 33700 BPM Processing Speed 8.4” Color LCD Display Graphics Display 512 KB Machine Memory 337 Block Look Ahead Editable Data Server Flashcard Type Communications: Ethernet with TCP/IP Protocol & RS 232 Parts Count & Run Hour Display Inch/Metric Switching Tool Life Management NAVI (Conversational) Programming
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Standard and Optional ACCESSORIES
Standard Accessories Stepless Spindle Motor Hydraulic Servo Turret 3-Jaw Thru-Hole Chuck
LT-350 X X
LT-400 X X
LT-520 X X
X X X X
X X X X X
X X X X X
X X X X
X X X X
X X X X
X 5 pcs 2 pcs 12 pcs 6, 8, 10, 12, 16, 20, 25 2 pcs each MT1 - MT2 - MT3 20, 25 1 pc X X X
X 5 pcs 2 pcs 12 pcs 8, 10, 12, 16, 20, 25, 32
X 4 pcs 2 pcs 10 pcs 10, 12, 16 20, 25, 32, 40
(Soft/Hard Jaw, T-Block) 1 Set Each X
Work Light Alarm Light Tool Box Operation Manual Programmable Hydraulic Tailstock Quill Programmable Hydraulic Chuck Foot-Step Switch Auto Power Off System Chip Conveyor (Includes Chip Cart) Boring Bar Tool Holder I.D. Tool Holder O.D. Tool Holder Boring Bar Bush Dia. mm Taper Bush U-Drill Bush Dia. mm U-Drill Tool Holder Coolant Pump Parts Catcher Tool Setter
2 pcs each
2 pcs each
MT1 - MT2 - MT3 20, 25, 32 1 pc X X X
MT2 - MT3 - MT4 20, 25, 32, 40 1 pc X X X
Optional Accessories • Auto Front Door System • Transformer • Bar Feeder Interface • Robot Interface • Bar Feeder • Collet Chuck • Workpiece Counter
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Model LT-350 LT-400 LT-520
Units inch (mm) inch (mm) inch (mm)
A 74.2 (1885) 88.6 (2250) 112.2 (2850)
B 67.7 (1720) 69.7 (1770) 74.6 (1895)
C 63.0 (1600) 65.7 (1670) 70.9 (1800)
D 36.6 (930) 36.0 (916) 39.4 (1000)
E 36.6 (930) 42.1 (1069) 35.6 (905)
F 74.2 (1885) 84.2 (2140) 102.4 (2600)
G 0 7.1 (180) 9.8 (250)
H 41.7 (1060) 41.7 (1060) 41.7 (1060)
I 11.6 (295) 11.8 (300) 13.4 (340)
EQUIPMEN
Model LT-350 LT-400 LT-520
Units inch inch inch
A 17.09 24.8 32.68
B 12.36 19.21 26.53
C 13.78 20.86 27.95
D 3.15 3.54 3.94
E 4.72 5.59 6.14
F 0.94 1.89 2.55
G 1.14 1.5 1.69
H 3.58 4.09 4.45
I 3.94 3.94 5.9
J 1.18 1.18 1.57
K 5.51 7.09 8.66
L 5.9 7.87 9.25
M 18.27 22.44 25.27
N 9.45 12.6 15.75
O 6.85 8.58 11.02
P 1.18 1.18 1.57
Q 4.72 6.3 7.87
R 13.78 16.53 17.72
S 1.18 1.18 1.57
T 1.26 1.18 1.57
Model LT-350 LT-400 LT-520
Units mm mm mm
A 434 630 830
B 314 488 674
C 350 530 710
D 80 90 100
E 120 142 156
F 24 48 65
G 29 38 43
H 91 104 113
I 100 100 150
J 30 30 40
K 140 180 220
L 150 200 235
M 464 570 642
N 240 320 400
O 174 218 280
P 30 30 40
Q 120 160 200
R 350 420 450
S 30 30 40
T 32 30 40
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RP 1,000 7 14
THE INDUSTRY’S MOST RESPONSIVE SERVICE AND SUPPORT When you choose a turning machine from MC Machinery Systems, Inc., you get industry-leading technology for peak milling performance - but that’s just the beginning. Long before your purchase, you’ll know the difference the Mitsubishi Experience can make. Our field service managers and applications engineers have technical expertise and industry specific knowledge, combined with MC Machinery’s wide array of machine tools and modular automation options. This potent combination gives the flexibility to deliver a custom system designed to make your business its most efficient and competitive. From installation and on-site training to support and service to keep you running at peak performance throughout the life of your system, our national service network is just a phone call away. No other company has greater depth of experience and resources than Mitsubishi and MC Machinery Systems Inc.
1500 Michael Drive, Wood Dale, IL 60191
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Tel: 630-616-5920
Fax: 630-616-4068
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www.mcmachinery.com