CQ6280B/CQ6280C Conventional Horizontal Lathes
Product Overview The MFG Machinery CQ6280 series represents the ultimate heavy-duty conventional lathe solution for large-scale, high-precision metalworking. Engineered to process massive workpieces, this machine boasts a formidable 800mm swing over the bed and features an advanced triple-bearing spindle architecture that delivers exceptional rigidity for aggressive, strong cutting. Built upon a high-quality, anti-twist cast iron bed with induction-quenched surfaces and PTFE (Polymerizing Tetrafluoroethylene) coated guideways, the CQ6280 guarantees outstanding vibration absorption, zero stick-slip, and long-term precision retention. Whether you are performing heavy material removal, complex international threading, or machining irregular flat stocks via the saddle gap, this lathe delivers uncompromising industrial performance.
MFG Machinery CQ6280 Series Heavy-Duty Precision Lathe
800mm Swing, Triple-Bearing Spindle & PTFE Guideways for Ultimate Industrial Machining (CQ6280B / CQ6280C)
Product Overview
The MFG Machinery CQ6280 series represents the ultimate heavy-duty conventional lathe solution for large-scale, high-precision metalworking. Engineered to process massive workpieces, this machine boasts a formidable 800mm swing over the bed and features an advanced triple-bearing spindle architecture that delivers exceptional rigidity for aggressive, strong cutting. Built upon a high-quality, anti-twist cast iron bed with induction-quenched surfaces and PTFE (Polymerizing Tetrafluoroethylene) coated guideways, the CQ6280 guarantees outstanding vibration absorption, zero stick-slip, and long-term precision retention. Whether you are performing heavy material removal, complex international threading, or machining irregular flat stocks via the saddle gap, this lathe delivers uncompromising industrial performance.
Key Features & Engineering Advantages
- Triple-Bearing Spindle Architecture: Designed for heavy-duty torque. The three-point support structure provides exceptional spindle rigidity and high-precision rotation, ensuring stable, vibration-free performance even during the deepest and strongest cuts.
- PTFE Coated Precision Guideways: The guide rail pair utilizes an advanced PTFE soft belt. This significantly enhances wear resistance, absorbs cutting vibrations, and maintains pinpoint accuracy over decades of continuous industrial use.
- Anti-Twist Induction Hardened Bed: The machine bed is meticulously cast from high-grade iron and undergoes intermediate frequency induction quenching, resulting in a highly anti-twist, durable foundation that resists deformation.
- Universal Dual-System Threading: Seamlessly cuts Inch, Metric, Module, and D.P. threads without the need for complicated conversions. The dual Inch/Metric measurement systems make it universally user-friendly for operators worldwide.
- Removable Gap Bed (Saddle Lathe): Beyond conventional turning, the removable saddle allows operators to easily accommodate and machine oversized flat stocks and irregular-shaped components.
- Global Power Compatibility: Equipped with a main power switch and safety interlock. The machine is fully customizable to operate on various international power supplies (220V, 380V, 420V) and frequencies (50Hz, 60Hz).
Premium Component Breakdown (Machine Anatomy)
To guarantee world-class performance, the CQ6280 series is built with strictly engineered, heavy-duty components:
- High-Capacity Headstock: Features a wide-range speed dial and a hollow spindle design with a large through-hole to easily accommodate long, heavy bar stocks. The outer conical surface seamlessly mounts three-jaw chucks, while the inner cone is precision-ground for centers.
- Industrial Gearbox & Feed Box: The motor-driven gearbox offers a wide and reasonable speed regulation range. Paired with the precision feed box, operators can effortlessly adjust feed rates and threading pitches.
- Dedicated Feed Rod & Lead Screw: Uses a dual-rod transmission system. The Feed Rod (polished rod) is engaged for smooth automatic longitudinal or cross-feeding, while the Precision Lead Screw is strictly reserved for high-accuracy thread turning.
- Heavy-Duty Apron (Slider Box) & Tool Post: The apron efficiently converts rotary motion into precise longitudinal or lateral linear feeds. The rigid Tool Post securely holds turning tools, allowing for longitudinal, lateral, or oblique movements.
- Versatile Tailstock: Mounted on the heavy bed rails with premium bearings, the tailstock sleeve supports long workpieces with a dead center. It can hold drills and reamers for hole processing, and can even be offset for precision taper turning.
| Specification | CQ6280B | CQ6280C | ||
|---|---|---|---|---|
| Capacity | Maximum swing diameter over bed (mm) | φ800 | ||
| Maximum swing diameter over toolpost (mm) | φ560 | |||
| Maximum swing diameter over in gap (mm) | φ1000 | |||
| Length in gap (mm) | 240 | |||
| Maximum distance between centers (mm) | 2000//3000 | |||
| Maximum machining length (mm) | 1950/2950 | |||
| Spindle | Spindle bore diameter (mm) | φ82 | φ105 | |
| Taper of spindle bore | ISO 702/Ⅱ No.8 | |||
| Spindle speed (r/min) | 24 steps 8-1400 | 12 steps 30-1400 | ||
| Feed and thread | Max. travel of upper toolpost (mm) | 145 | ||
| Max. travel of lower toolpost (mm) | 320 | |||
| Tool section (mm) | 25×25 | |||
| X-axis feeding range (mm/r) | 93kinds 0.012-2.73 | 65kinds 0.063-2.52 | ||
| Z-axis feeding range (mm/r) | 93kinds 0.028-6.43 | 65kinds 0.027-1.07 | ||
| Metric threads (mm) | 48 kinds 0.5-224 | 22 kinds 1-14 | ||
| Inch threads (t.p.i) | 46 kinds 72-1/8 | 25 kinds 28-2 | ||
| Module threads (πmm) | 42 kinds 0.5-112 | 18 kinds 0.5-7 | ||
| Diametric pitch threads (DP) | 45kinds 1/4-56 | 24 kinds 56-4 | ||
| Tailstock | Diameter of quill (mm) | φ90 | ||
| Max. travel of quill (mm) | 150 | |||
| Taper of quill (Morse) | Morse No.5 | |||
| Motor | Main motor power (kW) | 7.5 | ||
| Cooling pump motor power (kW) | 0.15 | |||
| Others | Length (mm) | 3365/4365 | ||
| Width (mm) | 1340 | |||
| Height (mm) | 1490 | |||
| Weight (kg) | 3300/3700 | |||