Basic Info
Model NO.: GL-350;GL-350A
Coordinate Boring Machine Type: Horizontal Type
Controlling Mode: Artificial
Automatic Grade: Semiautomatic
Condition: New
Boring Diameter Range: 60-350mm
Max. Boring Depth: 1000-15000mm
Clamping Diameter of Workpiece: 120-450mm
Spindle Taper: 1:20
Valtage: 380V/50Hz or Pre-Choose
Specification: CE ISO9001
HS Code: 8459390000
Structure: Deep Hole Boring Machine
Tool Type: BTA Drilling Head
Precision: High Precision
Certification: CE, ISO 9001
Color: According to Customers′ Require
Drilling Diameter Range: 30-100mm(for a-Type)
Spindle Center Height: 450mm
Headstock Spindle Speed Range: 60-1000rpm(12steps)
Main Motor Power: 30kw
Origin: China(Mainland)
Machine Summary
*This machine is specially designed for deep hole processing of cylindrical workpiece.
*It can perform different processing, such as drilling, boring, expanding and roller burnishing, etc. *Besides machining through-hole, it can also process step hole and blind hole.
*The machine tool is suitable for production of special cylinder, coal cylinder, hydraulic machinery, high pressure boiler tube, petroleum, military, electrics and airspace, etc.
Performance and Features
*The process adopts the mode of workpiece rotating and tools feeding, if necessary the tool can be also rotary. With the workpiece rotating and the tool feeding.
*The cutting fluid reaches the cutting area by oil supply device or through boring bar end, the chip removal adopts BTA type. When boring, cutting fluid pushes chips forward out of headstock end.
*The machine can be equipped with drilling box, achieving double rotation of workpiece and tools, and the single action is also available for meet the different processing demand. Under the conditions of lower speed rotation of the workpiece, the processing efficiency and quality can be assured.
*The machine has a wide application according to different processing demand.
*DB-350 is equipped with workhead box, but isn't equipped with boring box or drilling box; DB-350A add to boring box or drilling box on the basis of the DB-350, so higher efficiency machining deep hole for cylindrical workpieces.
*The machine consists of bed body, headstock, drilling and boring box (optional), chuck body, feed carriage, oil feeder, cooling system, chip removal device, steady rest, hydraulic system, boring bar support, motor and electrical system, etc.
Technical Parameters
Specifications | Units | GL-350 | GL-350A |
| Drilling diameter range | mm | / | Φ30-Φ100 |
| Boring diameter range | mm | Φ60-Φ350 | Φ60-Φ350 |
| Boring depth range | mm | 1000-15000 | 1000-15000 |
| Workpiece clamping dia. range | mm | 120-450 | 120-450 |
| Spindle center height | mm | 450 | 450 |
| Headstock spindle hole dia. | mm | Φ75 | Φ75 |
| Spindle front taper hole dia. | mm | Φ85 1:20 | Φ85 1:20 |
| Spindle speed range | r/min | 60-1000 (12 steps) | 60-1000 (12 steps) |
| Drill box spindle hole | mm | / | Φ75 |
| Drill box front taper hole | mm | / | Φ85 1:20 |
| Drill box speed range | r/min | / | 40-670 (12 steps) |
| Feed speed range (stepless) | mm/min | 5-2000 (stepless ) | 5-2000 (stepless ) |
| Feed carriage fast moving speed | m/min | 2 | 2 |
| Main motor power | kw | 30 | 30 |
| Hydraulic pump motor power | kw | 1.5 | 1.5 |
| Carriage rapid motor power | kw | 3 | 3 |
| Feed motor torque | N.m | 36 | 36 |
| Cooling pump motor power | kw | 5.5 (4 groups) | 5.5 (4 groups) |
| Cooling system rated pressure | MPa | 2.5 | 2.5 |
| Cooling system flow | L/min | 100, 200, 300, 400 | 100, 200, 300, 400 |
| Hydraulic system rated pressure | MPa | 6.3 | 6.3 |
| Max. axial force of oil feeder | KN | 6.3 | 6.3 |
| Max. clamping force of oil feeder | KN | 20 | 20 |
*Workpiece support and steady rest
The machine has workpiece rests and closed steady rest. They are used to clamp and position the workpiece with the good stability during process.
*Drilling(boring) bar rest
Three pieces of holder are equipped in standard configuration. The holder is in
Two half-tile structure up and down, which is easy for changing of the drilling
bar. It is used to support the bar, control moving direction of the drilling bar and
remove the vibration.
*Headstock For Clamping Workpiece
The box adopts high quality casting, with artificial aging treatment. The machine spindle head is short cone flange structure. The headstock spindle is treated by dynamic balancing, which keeps stable rotation and bearing accuracy. The headstock mainly offer powerful torque, which is used for workpiece rotation with 12steps speed. The spindle box adopts powerful oil lubrication. The spindle has the excellent rigidity, high strength, and good precision retaining ability. The chuck can choose 3-jaw chuck or 4-jaw chuck.