27
2025
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05
[Industrial Insight] QK Series Pipe Thread CNC Lathes
The QK series (QK1313/QK1319/QK1322) redefines pipe thread machining with three technological breakthroughs, delivering API-standard precision for oilfield and energy sectors.
1. Engineering Innovations
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Dual-Mode Spindle
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Heavy Cutting: 22kW servo motor with 24-300r/min stepless speed (QK1319)
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Precision Threading: ≤0.005mm spindle runout for API taper threads8
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Thermal Stability
HRC52 hardened guideways + pre-stretched ballscrews achieve ±0.003mm thermal compensation6 -
Smart Tooling
4-station turret (3s index time) with RFID-enabled tool life management5
2. Technical Matrix
Model | QK1313 | QK1319 | QK1322 |
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Max Pipe OD | Φ126mm | Φ190mm | Φ220mm |
Spindle Bore | Φ130mm | Φ200mm | Φ225mm |
Speed Range | 12-640r/min | 24-300r/min | 30-400r/min |
Surface Finish | Ra1.6μm | Ra1.6μm | Ra1.6μm |
3. Industrial Applications
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Drill Pipe Processing: API 5CT-compliant threading in ≤25min/unit10
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Pipeline Rehabilitation: ≤0.015mm coaxiality for 3m L80 pipes6
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General Machining: Dual chuck system for shaft turning/grooving8
4. Maintenance Ecosystem
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Vibration control per ISO 10816-3 (4.5mm/s threshold)4
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Lithium grease + acetone degreasing protocol (73% less guideway scratches)9
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