Surface grinding machine ETLS-1830NC

workpiececolumn typeCNC

Product Summary
ETLS-1830NC Like Chevalier Precision Grinding Extra Low Noise CNC Gantry Grinding Machine

Structure
High strength casting iron (HT300) with tempering treatment is utilized, to ensure rigidity, stability, and durability of our double column grinders.
Fixed cross beam structure combines the beam and columns into one sturdy door shape, to guarantee the solidity of the machine.

Movements
Large twin V is adopted on the machine base and work-table railways, allowing rock-steady table movements, as well as maintains best alignment with equilibrium.
The grinding head movements (vertical & longitudinal travel) are guided by high precision grade ball-screws, and driven by Baldor AC servo motors (PNC type). These features facilitate accurate positioning and micron-precise feeding.
Moving on high density strength steel (S55C), with ultra precision grade linear roller bearings, the grinding head has firm and smooth cross travel with exceptional and accurate cutting ability.
Angular turn on the vertical grinding head is driven by AC servo motor on worm shaft transmission. Numerical insert on desired angle with accuracy to 0.1 degree allows swift angle forming grinding with excellent results.

Spindle & Motor set
High precision in-house assembled cartridge type spindle set uses 6 super precision CP4 grade angular ball bearings, sealed with permanent lubrication. This structural superiority empowers the spindle to grind with low noise, low heat rise, and high precision.
Japanese brand V3 grade high torque spindle motors are utilized on all double column models. They are thoroughly tested with kinetic balance inspections, capable of remaining low noise, low vibration, and high stability movements even after long period of operation.
V3 grade motor is integrated with spindle set via couplings for direct transmission, to obtain maximum torque and reduce vibration.

Lubrication
Force coverage lubrication (oil streams down from upper to lower machine base railways) avoids impacts from lubricant oil pulsation pressure, and allows smooth movements.
The detecting sensor will disable table movement to protect the railways when lubrication oil pressure is not normal.

Hydraulic system
Employs precise electrical circuit to control the proportional hydraulic valve.
The operator can adjust work table speed directly via control panel, increasing work efficiency.
Hydraulic tank temperature is maintained by Habor Coolant system. The coolant stabilizes oil temperature after long hours of operation to guarantee grinding precision and protect hydraulic system parts.

Control System (PNC type)
Our own design of DSC based NC control system integrates all functions & movements of a large machine into one panel.
Numerical Control system that utilizes AC servo motors on both vertical feed & cross feed.
LCD screen display with digital inputs on panel allows easy operation on various grinding applications.
Easy maneuver and user-friendly design make the machine operation simple, without having to learn complex programming.

Specification Table
Main item: Twin heads double column type surface and slideway grinder — Configurations: 120300/150300 | 180300/200300
Worktable — Electromagnet table size (x*y): 3000x1200/1500 | 3000x1800/2000 (mm)
Max center of wheel to table: 620/630 | 620 (mm)
Two column passed maximum workpiece size: 1500/1930 2410 (mm)
Worktable Maximum loading capacity: 6500 | 7000 (kg)
Worktable feed speed: 5-30 (m/min)
Table t-slot specification: 18x4/18x6 | 18x6/18x8 (mm*n)
Surface Grinding head — Grinding wheel size max: 500x203x50-75 (mm)
Surface Spindle motor: 25x4 (HP*P)
Surface (50HZ) Grinding wheel speed: 1450 (R.P.M)
Slideway head — Grinding wheel size max: 350x127x40 (mm)
Slideway Rotation Angle: Left 90° / Right 90°
Slideway Spindle motor: 7.5x4 (HP*P)
Positive and negative rotation (Option) R.P.M: 0-1500
Size — Height of machine (Move to top Height): 3700 (mm)
Layout Floor space (Length X width): 7600x4800 / 8500x5000 / 8620x5400 (mm)
Weight: ≈24000/28000 | ≈33500/34500 (kg)

Caractéristiques / spécifications techniques

• Model: ETLS-1830NC
• Main item: Twin heads double column type surface and slideway grinder; configurations: 120300/150300 and 180300/200300
• Electromagnet table size (x*y): 3000x1200/1500 mm or 3000x1800/2000 mm
• Max center of wheel to table: 620/630 mm
• Two column passed maximum workpiece size: 1500/1930 2410 mm
• Worktable maximum loading capacity: 6500 kg or 7000 kg
• Worktable feed speed: 5-30 m/min
• Table t-slot specification: 18x4/18x6 or 18x6/18x8 (mm*n)
• Surface grinding wheel size (max): 500x203x50-75 mm
• Surface spindle motor: 25x4 HP*P
• Surface grinding wheel speed (50Hz): 1450 RPM
• Slideway grinding wheel size (max): 350x127x40 mm
• Slideway rotation angle: Left 90° / Right 90°
• Slideway spindle motor: 7.5x4 HP*P
• Positive/negative rotation (option) RPM: 0-1500
• Height of machine (move to top height): 3700 mm
• Layout floor space (L x W): 7600x4800 / 8500x5000 / 8620x5400 mm
• Weight: ≈24000/28000 kg or ≈33500/34500 kg