BTA Deep Hole Drilling and Boring Machines
Introduction of zk21d series of machine: this series of drills adopt the method of internal chip removal for drilling and machining.
Product Description
Product Description
Introduction of zk21d series of machine: this series of drills adopt the method of internal chip removal for drilling and machining. There are two types of drill pipe: single pipe and double pipes. The single tube is BTA Deep hole drill and the double tubes is ejetor drill.
The drill bit is usually connected with the drill pipe by screw thread, and its connecting part is circular section, its rigidity is higher than gun drill, and its production efficiency is 2-4 times of gun drill. However, limited by the chip removal space of the tool system, it is mainly used for the machining of holes with diameter ￠ ≥ 16mm, and the tools can not be reground. The workpiece rotates or is fixed, and the drill pipe rotates and feeds.
The feed guide adopts rolling guide, which has high hardness, stable movement and long precision. There are many kinds of workpiece clamping forms, such as double chuck, chuck with hydraulic center frame, inner cone top plate, etc.
The preferred equipment for deep hole machining of large quantities of rotary shaft parts is suitable for mining machinery, machine tools, molds and other industries.
T2120G T2120G/1 BTA Drilling Machine
Purpose of machine: This machine is a special machine for processing cylindrical deep hole parts. It is suitable for drilling and boring cylindrical deep hole parts. When boring, oil feeder is used to supply oil. Through the cutting area, the chips are discharged to the chip hopper at the head of the machine. During drilling, the internal chip removal (BTA) method is adopted, i.e. oil is supplied by the oil feeder. Through the cutting area, the chips are discharged from the inside of the drill pipe to the chip removal hopper at the back of the bed.
The machine is controlled by PLC, the reciprocating motion of the oil feeder and the feed carriage is controlled by servo motor, and the transmission is driven by rack in the middle of the two guide rails, which ensures the accuracy and rigidity of the feed transmission in the ultra long motion. Protection is installed on both sides of the bed, and the above ground oil tank structure is adopted to improve the machine environment. The machine tool can be equipped with two sets of automatic or manual high-efficiency tools, which greatly improves the machining efficiency of the machine tool.
The machine is a kind of deep hole boring machine with convenient operation, control, high efficiency and environmental protection.
Main Parameter
| Project name | T2120G T2120G/1 |
| Drilling diameter range | Φ40mm ～ Φ80mm |
| Boring diameter range | Φ40mm ～ Φ200mm |
| Center high | 400mm |
| Boring depth range | 1000 ～ 10000mm |
| Chuck diameter | Φ400mm |
| Center frame clamping diameter range | Φ50mm ～ Φ400mm |
| Spindle speed range, series | 50 ～ 800r / Min third gear 12 levels |
| Main motor | N = 30kW |
| Feed speed range | 5 ～ 2000mm / Min (stepless) |
| Feed motor | N = 4.5kW servo motor |
| Granter motor | N = 4.5kW servo motor |
| Cooling pump motor | N = 5.5kW N = 1440r / Min (four groups) |
| Cooling system rated pressure | 2.5MPa |
| Cooling system flow | 100 200 300 400L / Min |
·Standard accessories
| If equipped with frequency conversion motor | Spindle rotation range, series | 60 ～ 1200r / Min third gear stepless |
| Main motor | N = 37Kw frequency conversion motor | |
| T2120G / 1 is equipped with 15Kw, speed 40-500r / Min boring bar box | ||
| Add the function of drilling small holes to process 20-40mm diameter holes | ||
The above products can be equipped with CNC system: Beijing KND-1000M4; Siemens 802D or FANUC system, which is selected by the user.
TK2150 TK2250 CNC deep hole boring machine
TK2150 CNC deep hole boring machine is a new generation of CNC deep hole boring machine developed by our company, which embodies our company's leading position in domestic research and development of deep hole boring machine. Compared with the T2250A CNC deep hole boring machine series, the TK2250 CNC deep hole boring machine series has the following characteristics and advantages: It adopts the SIEMENS 802D CNC system produced by the German Siemens company. 2. High-precision helical racks are installed on both sides of the carriage bed; Siemens servo motors are used as feed motors. The feed motor slows down through the reduction gearbox and meshes with the racks on both sides of the machine bed to achieve the feed motion. 3. The servomotor is used to control the movement of the oil injector, which makes the operation more convenient.
TK2250 CNC deep hole boring machine does not have the drilling function, the boring bar box is optional, and the remaining functions are the same as TK2150 CNC deep hole drilling and boring machine.
Main technical parameters
| Project name | Parameters | Project name | Parameters |
| * Bore diameter range | Φ100～Φ550mm | Motor power of boring bar box | 22kW |
| Boring depth | 1000～12000mm | Feed motor power | 7.75kW Siemens |
| Spindle center height | 625mm | Cooling motor power | 5.5kWthreegroups |
| Spindle four-jaw chuck clamping diameter range | Φ110 ～ Φ750mm | Hydraulic pump motor power | 1.5kW |
| Center frame clamping diameter range | Φ110 ～ Φ750mm | Coolant rated working pressure | 0.36MPa |
| Spindle through hole diameter | Φ130mm | Cooling system flow | 300 600 900L/Min |
| Taper hole at the front end of the spindle | Metric 140 # | CNC system | SIMENS 802D |
| Spindle speed range | 3.15 ～ 315r / Min level 21 | Quick moving speed of carriage | 2000mm/Min |
| Speed range of boring bar box | 60 ～ 300r / Min | Precision | IT7～IT8 |
| Through hole diameter of spindle of boring bar box | Φ75mm | Machining surface roughness (fine boring) | Ra1.6～3.2µm |
| Taper hole at the front end of the spindle of the boring bar box | Φ85mm 1:20 | Roundness (measured on 300mm) | 0.03mm |
| Feed speed range | 3 ～ 2000mm / Min stepless | Cylindricity (measured on 300mm) | 0.04mm |
| main motor power | 30kW |
·Note: With * function, it is exclusive for TK2150 CNC deep hole drilling and boring machine.
TK2250 is a double rack transmission structure, which is different from the ordinary structure screw.
