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Modern Machine Tool Company

CNC
CONTROLLED TUBE CUT-OFF LATHES

Model 4LNC Tube Cut-Off Lathe

The programmable controls of these versatile LNC machines make set-up and changeover a breeze.  You can now produce complete parts with a single machine!

These cost-saving LNC machines are capable of performing the following operations:
· Automatic Loading
· O.D. Plunge Forming or Turning
· O.D. Chamfering
· O.D. Deburring
· I.D. Chamfering or Light I.D. Form

     Cutting of One End
· Cutting Off
· Automatic Unloading

 

Pendant-Mounted Console One operator controls the entire operation from a pendant-mounted console.
Drawing on their many years of experience in cutoff technology, the engineers at Modern Machine Tool Company have combined the best features of their conventional cutoff lathes with the latest in CNC controls to develop this efficient "LNC" line of high-production cutoff and machining lathes.

 

Standard Stock Stop Mechanism

Ball Screw Mechanism

Standard stock stop mechanism rides on a sturdy 2 x 6 ground steel beam with precision linear ways. Large pre-loaded ball screw mechanism with optional servo control permits programming varying part lengths.


Chamfer and Cut


Steady Rest and Exit Ramp

Slide on left chamfers the part while right-hand slide performs the cutoff operation. Both single-axis slides move perpendicular to spindle.  V-shaped swing position steady rests support stock during cutoff, then deposit finished parts onto exit ramp.

Hopper-type Automatic Feeders

Modern's hopper-type automatic feeders store large bundles of tube or pipe in any length.  They load on tube at a time into the machine, adjusting quickly to varying stock diameters, trimming the end of each new tube and ejecting remnant ends.

Check these important features:


SETS UP FAST FOR QUICK CHANGEOVER.
  Most machine adjustments are programmable from the operator station.

USES STANDARD CNC PROGRAMMING

OPERATES FAST, EFFICIENTLY, AUTOMATICALLY

CONSTANT SURFACE FOOTAGE SPINDLE DRIVE provides significant productivity gains over conventionally controlled machines. 30 HP is standard, 40 HP optional.

IDEAL FOR SHORT OR LONG RUNS on heavy wall tubing from ¼" to 8" O.D. and solid bar stock up to 3¼" diameter.

USES STANDARD, COMMERCIALLY AVAILABLE CARBIDE INSERT TOOLING in place of expensive form tools.

100% FANUC CONTROLS, SERVOS AND SPINDLE DRIVE with CRT monitor and pendant mounted operator control panel. (Allen-Bradley controls are optional.)

CUT LENGTHS UP TO 48" with standard stop support beam. (Longer beams are available.)


RIGID BEAM STOCK STOP. The stop is moved along linear bearings by a crank-operated ball screw, using a digital readout for setting the length position. It is locked and unlocked in position by a selector switch-operated power clamp. As an option, the stop can be automatically positioned by servo control. This allows programming a variety of different part lengths from the same bar for efficient use of material.

FEED RATES are positive, precise, programmable.

TOOL WEAR TIMERS indicate when tools need replacing.

TWO CROSS SLIDES, fed by independent servo drives and ball screws, move perpendicular to the spindle. While one slide cuts off, the other performs O.D. chamfering or O.D. plunge turning. One I.D. can also be chamfered or light form cut.

AUTOMATIC FEEDER holds large bundles of tube, pipe and bar stock.

STANDARD EQUIPMENT includes roller feed assembly, automatic lubrication of main spindle bearings, high volume coolant pump and piping, fused disconnect and cycle counter.


SPECIFICATIONS

MODEL 2LNC 3LNC 4LNC 6LNC 8LNC
CAPACITY ¼" - 2¼" OD 3/8" - 3¼" OD ½" - 4¾" OD ¾" - 7" OD ¾" - 8" OD
SPINDLE DRIVE 30 HP CONSTANT SURFACE FOOTAGE SPINDLE DRIVE (40 HP optional)
SPINDLE SPEEDS 100-3000 100-2000 90-1400 60-1000 60-1000
FEED MOTORS ½ HP, 1200 RPM ½ HP, 1200 RPM ¾ HP, 1200 RPM 1 HP, 1200 RPM 1 HP, 1200 RPM
FLOOR SPACE 164" x 94" 164" x 96" 164" x 96" 164" x 96" 164" x 96"
WEIGHT (Approx.) 7875 7875 9025 9225 9225

PRODUCTION RATES
(Pieces Per Hour Using Standard Carbide Insert Tooling.)

O.D.

PIPE OR TUBING

WALL
THICKNESS
.049 .065 .109 .125 .156 .187 .250 .375 .500 .625 .750 1.00 1.25
¼" 2,200 2,200                      
½" 2,100 2,000 1,890 1,860                  
¾" 2,000 1,890 1,700 1,630 1,550 1,480              
1" 1,870 1,560 1,520 1,450 1,330 1,270 1,140            
1½" 1,690 1,540 1,285 1,200 1,080 970 860 690          
2" 1,540 1,380 1,090 1,010 890 800 660 520 440        
2½" 1,410 1,280 965 875 765 680 553 425 345 305      
3" 1,380 1,240 840 775 665 590 480 355 290 245 220    
3½" 1,200 1,040 750 690 595 510 415 305 245 205 185 133  
4" 1,100 940 680 630 530 465 370 265 215 160 150 125  
4½" 1,050 890 630 570 480 420 330 240 190 155 135 110 95
5" 970 835 560 525 445 380 300 215 170 140 120 95 85
6" 870 730 500 450 380 325 255 180 140 115 100 80 70
7" 800 660 445 400 330 280 220 155 130 100 85 65 55
8" 725 585 400 355 295 250 195 135 105 85 70 55 45
SOLID ROUNDS
Diameter Pieces
Per Hour
¼" 2110
3/8" 2000
½" 1750
¾" 1310
1" 970
1¼" 720
1½" 550
2" 340
2½" 260
3" 170
3¼" 135

These rates are based on 1010-1020 carbon steel, with pieces cut 6" or less in length, at a spindle speed of 450 surface feet per minute and a feed rate of .004.  Cutting longer pieces (between 6" and 24") will decrease production rates by 10%.

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Disclaimer:

 Some of the information used on the pages within this website are adapted from literature from suppliers (including, but not limited to: Armstrong-Blum Mfg Co./ Marvel Mfg Co., Arntz Inc., De-Sta-Co, Hyd-Mech, FLEXOVIT, Kalamazoo, M.K. Morse Co., Modern Machine Tool Co, Simonds International, United Abrasives / SAIT).    

All use of Original Equipment Manufacturers Names and Part Numbers is for reference only.

We are not directly affiliated with any Original Equipment Manufacturers.  Wayco offers Quality AfterMarket parts.

Marvel®  is a registered trademark / copyright of Marvel Mfg, Inc.

These are not genuine MARVEL® parts. Wayco Sales, Inc has no affiliation with Marvel Mfg Co, Inc.