Dual-spindle machining center

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Product Details

Machine Tool Characteristics

1. Equipment Technical Description
The KMC-855/2A is a medium‑to‑small‑sized, column‑type vertical machining center with dual spindles. Featuring an electromechanical integrated design and a sleek, elegant appearance, it delivers high‑precision machining. After a workpiece is clamped once, the machine can automatically and continuously perform a wide range of operations, including milling, drilling, boring, reaming, rebating, countersinking, and tapping. It also includes automatic chip removal and a high‑flow chip‑flushing system (optional). Its fully enclosed protective enclosure ensures both aesthetic appeal and convenient operation and maintenance.
This machine is suitable for the multi‑variety machining of complex parts such as medium‑ and small‑sized housings, plates, panels, and casings, and is widely used in industries including automotive components, valves, construction machinery, new energy, rail transit, defense, shipbuilding, power generation, nuclear industry, metallurgy, IT equipment, optical equipment, medical devices, and aerospace.
2. Structure of the dual-spindle vertical machining center: It adopts a fixed-column, cross‑slide table configuration. The machine boasts high rigidity, excellent stability, and outstanding reliability. Guideways: Imported precision P‑class roller guideways are used for the X, Y, and Z axes—sizes 35/45/35—offering high accuracy, substantial load capacity, and superior stiffness. Lead screws: Imported C3‑grade precision ground lead screws are employed; the X, Y, and Z axes utilize 4016‑size lead screws. Bearings: Both the lead screw bearings and the spindle bearings are specialized precision bearings from leading manufacturers (NSK, FAG, SKF).
Castings: Major components such as the bed, worktable, column, spindle housing, and saddle are all manufactured from high‑strength, low‑carbon cast iron using resin‑bonded sand molding. Subsequent tempering heat treatment eliminates internal stresses, resulting in a robust, well‑balanced structural integrity.
Leveraging the high strength, excellent rigidity, minimal thermal distortion, and superior seismic performance of cast iron, this design ensures long-term maintenance of the machine tool’s overall accuracy and extends its service life.

Technical Specifications

Standard/Model		KMC-855/2A
X-axis travel (table left/right movement)	mm	800
Y-axis travel (table fore-and-aft movement)	mm	550
Z-axis travel (spindle head up and down)	mm	550
Distance from the spindle nose to the worktable surface	mm	150-700
Distance from the spindle center to the column guideway surface	mm	605
Workbench dimensions	mm	1000×500
Maximum load of the workbench	kilogram	600
T-slot dimensions	mm	5-18×90
Main motor power	kw	DG7.5
Spindle speed	rpm	8000
Spindle taper		BT40
Rapid feed rate (X/Y/Z)	m/min	36/36/36
Positional accuracy	mm	±0.005/300
Repeatability of positioning accuracy	mm	±0.003
Cutting feed	mm/min	1-10000
Tool magazine capacity	to put	24
Tool magazine type		Knife arm
Maximum tool length	mm	300
Maximum tool weight	kilogram	8
Mechanical dimensions (Length × Width × Height)	mm	2860×2650×2800
Machine weight (approximate)	kilogram	7800

Dual-spindle machining center

Machine Tool Characteristics

Technical Specifications

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