China Table Type Horizontal Boring Mill with Spindle Diameter 85mm

This table type horizontal boring mill is used for boring, milling, hole-enlarging and reaming operations in rough or fine machining processes. With its high rigidity, high precision and high efficiency, this machine is particularly suitable for boring or milling large flat surfaces or fine machining on the workpiece a series of holes which have tight positional tolerances between each other. Meanwhile, equipped with accessories for turning, it can be used to cut Metric or Inch threads. There are many optional accessories available for this machine so that special applications can be performed.
Features:
1. Bed & Column are respectively made of one-piece fine-grained and stress-relieved Meehanite cast iron and ensures high rigidity, high precision and high stability even under very heavy cutting condition. The castings for the bed and the column are reinforced with ribs to achieve high rigidity to remain stable even under the heaviest cutting conditions. In the hollow of the column there is a counterweight for compensating for the weight of the headstock. All the guideways for the table longitudinal slide (Z-axis), the table cross slide (X-axis) and the headstock vertical slide (Y-axis) on the bed and the column are box type and induction hardened & precision ground to offer a high loading capacity with high rigidity and high precision;
2. Headstock contains the spindle, the live spindle, the spindle bearings, the spindle driving mechanisms, the live spindle driving mechanisms, the tool clamping system and the controlling mechanisms. Various standard or optional accessories such as the spindle loading support, the facing head, the milling head can be mounted to the face of the headstock. The spindle and the live spindle are made of wear-resistant chrome-moly steel alloy to achieve a high reliability. Extra-precision spindle type, preloaded, multiple-setup tapered roller bearings have been mounted to support the spindle which is driven by two sets of gears. Three hardened sleeves, carrying the live spindle, have been mounted into the hollow spindle along its fore-and-aft direction to ensure the live spindle to rotate with high precision and remain stable for a long run. Both the spindle and the live spindle have been nitride hardened and then precision ground and lapped for high precisin performance. The live spindle can move stably with a high precision in the spindle sleeves while remaining stable with a high precision in a long run in operations. The spindle braking is energy-consumption type which ensures a smooth and low-nosisy braking for the spindle;
3. Table slides along both X-axis and Z-axis and rotates 360-deg around B-axis with a high positioning accuracy, a high indexing accuracy and a high repeatability accuracy with powerful clamping. It can load maximum 2000 KGs. The top bearing surface of the table has been induction hardened and precision ground to a high precision;
4. Rear column is equipped with boring bar supporting tailstock which can move precisely synchronously with the spindle to ensure a stable deep-hole boring operation.
5. Movement directions of axes
X-axis: Cross travel of table
Y-axis: Vertical travel of headstock
Z-axis: Longitudinal travel of table
B-axis: 360-Deg rotation of table
U-axis: Slide stroke on facing head
W-axis: Axial travel of live spindle
6. Performance accuracy:
X-axis and Y-axis positioning accuracy: 0.02mm/300mm
X-axis and Y-axis reading accuracy: 0.005mm
Rotary table indexing accuracy: 30 Sec.

Model THBM85,Table TypeTable Table Size, mm 800x1000 Table Loading Capacity, KGs 2000 T-Slot Width/Pitch/Number, mm / Pcs 22H8/100/7 Table Index, Degree 1 Table Indexing Accuracy, Sec 30 Table Longitudinal Travel (Z-Axis), mm 1140 Table Cross Travel (X-Axis), mm 850Spindle & Headstock Spindle Diameter, mm 85 Spindle Bore Taper, mm Morse No.5 Spindle Speed, RPM 18 Steps, 20-1000 Facing Head Speed, RPM 14-Steps, 10-200 Vertical Travel of Headstock (Y-Axis), mm 757 Axial Travel of Live Spindle (W-Axis), mm 600 Slide Stroke on Facing Head (U-Axis), mm 170 Distance from Spindle Center to Table Top, mm 30-800 Feeding Rates of Headstock and Table, mm/Rev.
(Calculated by Each Revolution of Spindle) 18 Steps, 0.025-8 Feeding Rates of Headstock and Table, mm/Rev. (Calculated by Each Revolution of Facing Head) 18 Steps, 0.05-1.6 Rapid Traverse Speed of Spindle, m/min 4.4 Rapid Traverse Speed of Tool Post, m/min 1.0 Maximum Drilling Diameter of Spindle, mm 65 Maximum Boring Diameter of Facing Head, mm 450 Maximum Boring Diameter of Spindle, mm 240 Maximum Output Torque of Spindle, N.m 1100 Maximum Output Torque of Facing Head, N.m 2200 Maximum Output Thrust Force of Spindle, N 13000 Output Power of Spindle, KW 6.5/8.0 Rated Power Supply, KVA 23 Dimensions & Weight Machine Size, mm 5075x2200x2730 Packing Size, mm 5600x2300x2800 Machine Net Weight, KGs 11000