The three machines in the traveling column-design Tongtai SH horizontal machining center series are engineered for compactness and speed. The smallest (4000P) machine is 69″ (1752 mm) wide and has X-Y-Z axis travels of 20″ x 20″ x 20″ (500 mm x 500 mm x 500 mm), while the largest (5000P) machine is 90″ (2286 mm) wide with X-Y-Z axis travels of 28.7″ x 28.7″ x 32.7″ (730 mm x 730 mm x 830 mm).
Double nut pre-loaded 40mm (1.57″)-dia. class 3 ballscrews permit rapid traverse rates of 2,362 ipm (60 m/min) and acceleration/deceleration of up to 1.0G in the X, Y and Z axes. An Absolute Pulse Coder servo system does not require zero return, enabling the machine to be started from any position.
The machines feature 15,000 rpm integral spindles. Via high-low winding switching, they produce 50 hp peak (10 min. rating), 35 hp in high and 25 hp in low, and 184 lb-ft of peak torque at 980 rpm. Spindles accelerate from 0-7,000 rpm in 0.48 seconds and 0-15,000 rpm in 1.9 seconds. Deceleration from 12,000 rpm to stop is 0.8 seconds. The Big Plus dual contact toolholding system is standard, and air/oil mist is used for spindle bearing lubrication.
A high speed full contouring “B” axis provides 0.001˚ precision and 90˚ index time of 0.5 seconds (4000P) and 0.76 seconds (5000P). A hydraulic clamping mechanism assures repeatability.
The standard 60-station automatic tool changer executes changes in 1.4 seconds with average chip to chip time of only 2.6 seconds (4000P) and 3.0 seconds (5000P). A rotary type automatic pallet changer switches pallets in 5.9 – 7.0 seconds
The machines feature rigid Meehanite cast iron frames, and a standard rear discharge chip removal system assures efficient chip removal. A Fanuc OiM-F conversational control is standard with a full complement of high speed machining options for mold detail and electrode machining.
Travels
Longitudinal Travel X-Axis 20″
Cross Travel Y-Axis 20″
Vertical Travel Z-Axis 20″
Spindle Center to Table Top 3.15″ Min / 23.2″ Max
Spindle Nose to Table Center 2.75″ Min / 22.8″ Max
Table Height from Floor 43.3″
Pallet
Pallet Working Surface 15.7″ x 15.7″
Max Workload on Pallet 880 lbs. each
Table Surface Qty 25 – M16 Holes
Max Workpiece Size (∅ / height) 21.65″ x 31.5″
B-Axis Contour Positioning (full 4th axis) .001°
Spindle
Spindle Motor 50HP / 35HP 30 min. /25HP cont. (built-in)
Spindle Taper Big Plus CAT-40 / BT-40 /HSK-63A
Spindle Drive System Integral Motor
Spindle Speed 0 – 15,000 RPM
Spindle Torque 184 ft./lbs. @ 980 RPM
Spindle Bearings Hybrid Ceramic with Air/Oil Mist Lubrication
Automatic Tool Changer (Standard)
Number of Tools 60
Tool Selection Random
Tool Change Time 1.4 sec. Tool to Tool
Chip to Chip Time 2.6 sec. Chip to Chip avg.
Max Tool Diameter 3.15″ with Adjacent Tools 6.6″ without
Max Tool Weight 26.4 lbs.
Max Tool Length 11.8″
APC Unit
Type Rotary (0 – 180°)
Change Time 5.9 sec.
Rotation Method Servo Motor
Pallet Clamping Method Ball Lock Cones – 37,400 lbs. Clamp Force
Ballscrews and Axis Motors
X-Y-Z Ballscrew Diameter 40mm (1.57″) x 16mm Pitch
Ballscrew Type Class 3 Double Nut Pre-loaded
Ballscrew Mounting Type Pre-tensioned/Double Anchored
X-Y-Z-B Servo Motor HP 5.2 – 9.0 – 5.2 – 2.1 HP
Servo Motor Mounting Direct Coupled
Feeds
Rapid Traverse Rate X, Y, Z 2,362 IPM
X, Y, Z Acceleration 1G
Cutting Feed Rate 0.01 – 787 IPM
Positioning Accuracy ± .0002″ Full Stroke
Repeatability ± .0001″
General
Coolant Tank Capacity 120 Gallons
Machine Weight 23,000 lbs.
Floor Space 209″ x 69″ x 107″
Machine Power Source 208/220 Volts, 3 Phase 150 Amps*
Air Source 90 PSI
STANDARD ACCESSORIES
Fanuc OiM-F Conversational CNC Control
Full 4th axis contouring (B-axis)
400 PSI coolant through the spindle system
Air blast for spindle
LHL / Lube USA auto grease lubrication system
Full machine enclosure
Halogen work lamp
Chip conveyor (Combination type dual level with fines separator)
Coolant shower system, chip wash system, and coolant wash down gun
Remote Manual Pulse Generator
Spindle cooling system
Rigid Tapping
Air conditioner for electrical cabinet
OPTIONAL ACCESSORIES
Upgrade to 1000 PSI CTS instead of 400 PSI
Upgrade to 500mm pallets (4500P & 5000P)
Unist Uni-Max cool lubricator for near dry machining – installed
Auto Tool Presetter
BK Micro broken tool detection in tool magazine – installed
Marposs VOP optical wireless 3-D part probe installed with training
Marposs WRP radio wireless 3-D part probe installed with training
Marposs ML75P laser tool setter installed with training
Renishaw OMP-60 2-D part probe installed with 2 days training
Renishaw MP-700 3-D part probe installed with 2 days training
Renishaw RMP-600 3-D radio part probe installed with 2 days training
440 / 460 / 480 Volt operation
Automatic power off
Additional 8 sets of M codes for fixture interfacing
HSK-63A spindle (HSK taper instead of #40 taper)
18,000 RPM, 40 HP integral spindle with HSK-63A tool system
3 axis linear scales for XYZ
Overhead hydraulic fixture ready with flex arms, 3000 PSI
Through pallet hydraulic fixture ready, 3000 PSI
Additional 400mm pallets
Additional 500mm pallets (4500P & 5000P)
Auto Door
Light Curtain for Auto Door
Fastems interface and preparation on machine side for Fastems integration
Optional Control Features – Fanuc OiM-F
Data Server with 1GB built-in ATA card and Fast Ethernet connection
AICC-II high speed machining mode with 200 block look ahead
2 Megabyte RAM program memory
5th axis expansion (for 4+1 capability)
Memory card editing function (to enable editing on the compact flash card)
Data Server Editing function (to enable editing on the ATA card)
Tongtai Integrated Monitoring System (TIMS)
TIMS software with user friendly HMI and built-in PC
Cutting Load Monitoring
APC Information and Scheduling (for mills)
Machine Alarm Message Record
Troubleshooting and Maintenance Support through graphical display
Motor Load Monitoring for spindle and axis motors
Machining Adaptave Feedrate Control – auto adjust of federates for improved efficiency
Crash Protection – real time detection of servo loads to minimize damage
Tool Usage Time Tracking
Tool Compensation
Tool Life Management
Tool Overload Protection
Workpiece Management and Workpiece Positioning via use of CCD Camera
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