TK7220 Boring Machine
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Precision Boring of Small & Medium-Sized Box Parts
Specialized in high-precision boring of bearing holes, pin holes and positioning holes for mechanical box parts such as reducer housings, gearbox casings, pump bodies and valve blocks. The ≤0.003mm spindle runout and high roundness accuracy ensure the matching precision of hole systems, meeting the assembly requirements of precision transmission components.
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Mold & Die Precision Hole Machining
Processes precise positioning holes, guide pin holes and core holes for plastic injection molds, stamping molds and die-casting molds. The stepless spindle speed and feed rate adapt to the boring of mold steel (P20, 718H, H13), and the X/Y-axis precise worktable travel realizes multi-hole position machining with high coaxiality and position tolerance.
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Hydraulic & Pneumatic Component Machining
Bores high-precision oil holes, piston holes and cylinder holes for hydraulic cylinders, pneumatic actuators, hydraulic valves and oil pumps. The excellent cylindricity of bored holes ensures the sealing performance and smooth movement of hydraulic/pneumatic components, avoiding oil leakage and mechanical jamming during operation.
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Automotive & Motorcycle Spare Part Processing
Machines precision holes for automotive engine cylinder heads, motorcycle crankcases, gear shift forks and brake calipers. The stable electric-hydraulic control and high boring accuracy meet the strict dimensional tolerance requirements of auto parts, matching the mass production of precision mechanical accessories.
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Instrument & Precision Machinery Manufacturing
Bores micro-precision holes for instrument casings, precision measuring tools, optical equipment parts and small precision mechanical components. The low-speed high-torque spindle performance and fine feed rate realize the ultra-precise boring of small-diameter deep holes, ensuring the working precision of precision instruments and equipment.
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Repair & Refurbishment of Precision Mechanical Parts
Performs reboring and precision repair of worn holes, deformed holes and damaged holes for precision machine tool parts, bearing seats and transmission components. The high positioning accuracy of the worktable and replaceable boring cutters can restore the original precision of the hole system, reducing the cost of replacing new parts.
5,300.00$
| Parameter | Specification |
|---|---|
| Machine Model | TK7220 |
| Machine Type | Vertical hydraulic fine boring machine |
| Maximum Boring Diameter | 200mm |
| Boring Depth Range | 0-300mm |
| Spindle Taper | MT5 (Morse Taper No.5) |
| Spindle Speed Range | 63-1600r/min (stepless speed regulation) |
| Spindle Feed Rate | 0.02-0.12mm/r (stepless adjustable) |
| Spindle Runout Accuracy | ≤0.003mm |
| Boring Hole Roundness | ≤0.005mm |
| Boring Hole Cylindricity | ≤0.008mm/100mm |
| Worktable Size (Length×Width) | 400×500mm |
| Worktable Travel (X/Y-axis) | 250×300mm |
| Worktable Positioning Accuracy | ±0.005mm |
| Worktable T-slot (Qty/Width) | 3×14mm |
| Maximum Workpiece Weight | 200kg |
| Main Motor Power | 4kW |
| Hydraulic System Power | 1.5kW |
| Hydraulic Working Pressure | 6-8MPa |
| Control Mode | Electric-hydraulic combined control (manual/foot switch) |
| Overall Dimensions (L×W×H) | 1200×1100×2200mm |
| Machine Net Weight | Approx. 1800kg |
| Working Voltage | 380V/50Hz (3-phase; customizable for export) |
| Cooling System | Circulating liquid cooling (built-in pump) |
| Lubrication System | Automatic forced lubrication (spindle/guide rail) |
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