THETA H2O: CNC machining center for water-based processing of light metals
THETA H2O is a CNC machining center developed by Cielle for those seeking precision, stability and quality in the processing of light metals, in particular brass, aluminum and alloys used in the fashion, accessories and design sector.
The machine has been designed to offer an increased water flow, making it an ideal solution for processes where tool cooling, chip evacuation and cleaning of the production process are fundamental.
Ideal for those who produce fashion accessories and brass components and light metal molds or steel dies.
Thanks to water management, THETA H2O is particularly suitable for companies that produce metal components for the fashion and accessories sector, such as:
- buckles for leather goods: precise workmanship on brass and light metals for quality accessories.
- accessories for bags and footwear: decorative and functional metal components with clean finishes.
- small metal parts: small details machined with precision and repeatability.
- nameplates and plaques: engravings and milling on identifying or decorative elements.
- components for jewelery and costume jewellery: accurate workmanship even on small details.
- molds and clichés: creation of clichés for hot stamping, punches and matrices.
- steel dies: for cutting materials such as leather
Increased water flow for cleaner processes
The water system improves cooling during processing, reducing overheating of the material and the tool.

This allows you to obtain cleaner surfaces, greater machining stability and better chip evacuation, especially when working on materials such as brass and aluminium.
Stable structure for centesimal precision
The structure of the machine is made of aluminum machined from solid wood using high-precision CNC machining.
This construction solution eliminates the typical elasticity of castings and allows the machine to maintain high stability even during demanding processes.
The result is a machine designed to guarantee centesimal precision, rigidity and reliability over time.
Fast movement and precise control of the axes
All movement systems are recirculating spheres, while the axis motors are brushless with absolute encoder and EtherCAT interlocking.
This configuration allows rapid and precise control of positioning, improving productivity and the quality of the finished piece.
Cielle numerical control developed internally
Hardware, firmware and software of the CNC control are made entirely by Cielle.
The Cielle numerical control has been further developed to support the new accelerations and speeds required by the market, guaranteeing advanced management of the machine and processes.
Cabin designed to contain water and chips
THETA H2O was designed for water processing, with a new cabin forcontainment and collection of emulsified water.

The telescopic protections guarantee the tightness of the machine, while the chips are collected in a tank under the base, improving order, cleanliness and management of the production process.
Main technical characteristics
- Working area: 650 x 500 mm
- Surface of the engraving table: 790 x 600 mm
- Distance between columns: 950 mm
- Maximum height under the cutter: 200 mm
- Vertical stroke of the cutter: 0 ÷ 200 mm
- Maximum speed of X/Y axes: 12 m/min
- Maximum Z axis speed: 12 m/min
- Acceleration: 2.5 m/sec
- Maximum working speed: 10 m/min
- Spindle power: 4 KW
- Spindle speed: 0 ÷ 35,000 rpm
- Collector cones: HSK E25
- Pliers diameter: 1 ÷ 10 mm
- Tool magazine: 12 positions as standard
- Tool presetting: as standard
- Dimensions: 2000 x 1900 x 2650 mm
- Net weight: 1500 kg
Standard equipment
- HF electrospindle: three-phase 380 V, 4.5 KW, HSK-E25, 35,000 rpm with inverter.
- Spindle cooling: liquid, with dedicated cooling unit.
- Tool magazine: 12 positions designed for HSK-E25 cones.
- Tool setting: electronic.
- Cooling system: continuous jet.
- Protection cabin: with LED lighting and processing viewing camera.
- Backlit Cielle writing: with different colors based on the status of the machine.
- Driver: ISO/HPGL.
- Handheld keyboard: with hand wheel.
THETA H2O is the ideal solution for companies that want to process light metals with precision, continuity and quality, especially when production requires clean milling, effective cooling and maximum process stability.