Introduction(best chrome plating near me Renata)
- source:DAHLER CNC Machining
CNC Machine Types
There are several types of CNC machines used in manufacturing:
- CNC Mills - Used for machining parts on 3 axes (X, Y, Z). Common types are vertical mills and horizontal mills. They can perform operations like facing, drilling, boring and tapping.
- CNC Lathes - Used for machining rotationally symmetric parts. Operations done include facing, turning, drilling, boring, threading etc. Lathes can be horizontally or vertically oriented.
- CNC Routers - Used to cut various sheet materials like wood, plastic, steel, aluminum etc. Common operations are cutting, drilling and carving.
- CNC Plasma Cutters - Used to precisely cut metal sheets up to 1 inch thickness using a plasma torch. Highly suitable for cutting parts for welding.
- CNC Laser Cutters - Used to cut sheet metal using a high power laser beam. Allows very intricate designs. Plastic and wood can also be cut.
- CNC Waterjet - Uses an extremely high pressure jet of water mixed with abrasives to cut through metal and other materials. Allows precise and intricate cutting.
The cost of CNC machines depends on several factors:
- Type of CNC Machine - Mills, lathes and routers have varying costs depending on work envelope, power and features. Plasma and laser cutters cost much more.
- Size - The larger the work envelope (X,Y,Z travels), the more material that can be machined and higher the cost.
- Precision - More precision requires more accurate components, increasing cost. Precision is measured in repeatability, accuracy, etc.
- Power - Higher power motors and spindles allow removing material faster but cost more.
- Control System - More advanced control systems for motion, servo motors, and feedback loops increase the capabilities but also cost.
- Software - Advanced software for programming, simulation and automation increases cost.
- Brand Name - Established CNC brands like Haas, DMG MORI, Mazak carry a premium over lesser known brands.
- Options and Features - Addition of probes, tool changers, coolant systems, robotic part handling all add to the cost.
- Materials and Construction - Machines made from higher grade materials with better rigidity and dampening cost more.
Cost Range for Common CNC Machines
Here is the typical cost range for common CNC machines:
- Small Vertical CNC Mills - $6,000 to $20,000
- Medium Sized CNC Mills - $20,000 to $50,000
- Large CNC Production Mills - $50,000 to $150,000
- Small CNC Lathes - $6,000 to $35,000
- Large CNC Lathes - $35,000 to $100,000
- Benchtop CNC Routers - $4,000 to $12,000
- Production CNC Routers - $12,000 to $50,000
- CNC Plasma Cutters - $15,000 to $60,000
- CNC Laser Cutters - $40,000 to $100,000
- CNC Waterjet Cutters - $60,000 to $200,000
Of course, on the high end, specialized large production machines with multi-axis, high precision and advanced software can cost over $500,000.
Factors that Reduce Cost
Here are some ways shops can get CNC machines at reduced costs:
- Buying used/refurbished CNC machines rather than new
- Buying from lesser known manufacturers to avoid brand premiums
- Only buying the features actually needed for the application
- Retrofitting manual machines with CNC controls
- Starting with benchtop/desktop CNC mills and lathes
- Using open source CNC control software like LinuxCNC
- Making your own DIY CNC machine as a low cost option
Operating Cost Considerations
Apart from the purchase cost, operating costs are also a major factor:
- Maintenance - Routine maintenance kits, repairs and servicing
- Cutting tools/bits - These are a consumable that must be regularly replaced
- Workholding solutions and fixturing - Essential for efficient machining
- Software upgrades - Some advanced software requires annual licensing fees
- Operator training and labor - CNC machines require skilled programmers and machinists
- Shop utilities - Power, compressed air, coolant, etc. must be supplied
Therefore, both purchase and operating costs must be evaluated when selecting a CNC machine. Careful selection for the specific application results in the most cost effective and productive CNC machining.
CNC machines range from benchtop mills and lathes costing a few thousand dollars up to production machines costing hundreds of thousands. The type, size, precision and features greatly influence the overall cost. Both initial purchase cost and ongoing operating costs must be considered for maximizing productivity and value. With some planning, even small machine shops can cost-justify bringing in CNC equipment at the right price point for their needs. This allows efficiently and reliably producing precision machined parts. CNC Milling CNC Machining