WHERE PROFESSIONALS
TRANSFORMING CONCEPTS INTO PRECISION PARTS.
We integrate machine tools, materials, processes, technologies, and automation with our extensive experience, transforming concepts into scalable, manufacturable improvements that are ultimately applied to actual products.
More than supplying machines — we coordinate machine selection, process evaluation, sample machining, acceptance and delivery.
"Create real value for customers,and move manufacturing forward."
— Honglin HE, Founder, SIPENG CNC
FEATURED CNC SOLUTIONS
SUS306L Gate Valve Stem Tapered Square Machining
A CNC squaring machine with a dedicated clamping sub-sleeve, spindle taper support and indexable tooling cut the tapered-square cycle on SUS306L gate valve stems from about 3 minutes to 1 minute 20 seconds per piece, with one operator now covering three machines.
View Case Study →
Case Study on the Machining of Copper Rotor Bars for Submersible Pump Motors
SIPENG CNC developed an automatic CNC turning solution for machining both ends of copper rotor bars used in submersible pump motors. The solution combines dedicated feeding, workholding and internal guidance to improve production output, machining consistency and handling of long copper profiles.
View Case Study →
Case Study on the Machining of Copper End Rings for Submersible Pump Motor Rotors
SIPENG CNC developed a drilling and chamfering solution for copper end rings used in submersible pump motor rotors, combining CNC machining, through-spindle coolant and dedicated fixtures to address chip wrapping, manual clamping and repetitive handling.
View Case Study →
Submersible Pump Motor Rotor Assembly Outer Diameter Machining Case Study
To address issues such as tool switching, repeated alignment, and handling-induced damage during the machining of the outer diameter of submersible pump motor rotor assemblies, this case study reconfigures the machine tool, internal bore clamping method, and workpiece handling process, enabling continuous external turning in a single setup while protecting the machined surfaces.
View Case Study →
Bicycle Bottom Bracket Spindle End Machining Automation Case Study
A pipe fitting manufacturer replaced scattered manual lathes with a cell of CNC lathes fed by bar feeders. Process planning, tooling packages, part programs and operator training were delivered with the machines, so fitting blanks now move through the cell on a fixed, repeatable route.
View Case Study →
Prestressed Anchorage Wedge External Taper Machining Automation Case Study
An elevating feeder and dual-channel CNC lathe were added to automate handling for prestressed anchorage wedge turning. The customer reports about 20 seconds per part in the original process and about 14 seconds in the new process; the time scope and production results should be verified on a consistent basis.
View Case Study →
Integrated Bicycle Disc Brake Rotor Internal Thread Machining
CNC turning case study for a one-piece bicycle disc brake rotor. A dedicated fixture supports the perforated rotor web, approximately 1.8 mm thick, during internal-thread and face machining in one setup. The customer reports an 18-second cycle time; the timing scope and dimensional basis require confirmation.
View Case Study →
Automated Feeding and Turning for a Shock Absorber Locating Sleeve
An automatic feeding system was integrated with a CNC lathe to machine deep-drawn shock absorber locating sleeves. The original turning process already used one setup but required manual loading and unloading. The customer reports a change from about 10 to 7 seconds per part and one operator tending four to six machines; production conditions should be verified.
View Case Study →
Automated Turning of Automotive Welding Locating Pins
Precision machining solutions for titanium and aerospace aluminum components with complex geometries and demanding tolerances.
View Case Study →OUR MACHINE CAPABILITIES
From precision CNC turning to complete automated production solutions
Swiss-type CNC lathes are designed for precision, high-volume production of small-diameter shafts, pins, fittings, and other complex components.
Explore Machine →
CNC turning centers for precision shaft and component machining, with optional bar feeding and automatic part loading to support consistent, efficient production.
Explore Machine →
Turn-mill CNC machines can combine turning and milling operations in one setup for complex shafts, discs, sleeves, and other precision parts. Machine configuration and automation are selected to suit part geometry and production requirements.
Explore Machine →
CNC polygon turning machines for producing square and hexagonal profiles on valve stems and other bar-type components. Machine configuration and workholding are selected to suit the required profile, blank size, and production volume.
Explore Machine →
CNC gear hobbing machines for producing spur and helical gears. Machine selection depends on gear geometry, module, workpiece size, and required production volume.
Explore Machine →
Gang-type CNC lathes for efficient machining of small, precision components from bar stock. The gang-tool layout supports fast tool changes and is well suited to repeat production of pins, fittings, and similar parts.
Explore Machine →
CNC turret lathes for turning shafts, fittings, and other precision components. The turret provides access to multiple tools for efficient multi-operation machining. Machine configuration is selected to suit the part and production requirements.
Explore Machine →WHY CHOOSE SIPENG CNC
We evaluate machine configuration, cycle time, labor and tooling together to help reduce the total cost per part.
Machine selection begins with your drawing, material, tolerance, production volume and automation requirements.
SIPENG CNC is your single contact for machine, tooling, automation, technical coordination, delivery and after-sales support.
We coordinate application review, machine configuration, tooling preparation and sample machining before delivery.
Critical dimensions, machine functions and production performance are verified before shipment.
Machines are installed, commissioned and accepted on site, with operator training, spare parts and long-term technical support.
ENGINEERING & PROJECT SUPPORT
Experienced specialists supporting machine selection, process evaluation, commissioning and delivery
Machine Selection & Solution Planning
Part-driven machine selection and production planning based on drawings, materials, tolerances, output targets and automation requirements.
VIEW CAPABILITIES →
Machining Application Engineering
Machining processes, tooling, workholding and cutting parameters developed around the part, material and production target.
VIEW CAPABILITIES →
CNC Commissioning & PLC Support
CNC commissioning, PLC programming and control-system integration for stable, safe and production-ready machine operation.
VIEW CAPABILITIES →
CAM Programming & Machine Simulation
Verified CAM programs, reliable post-processors and machine simulation for safer and more efficient CNC production.
VIEW CAPABILITIES →
Tooling & Application Engineering
Custom tooling design, testing and application optimization for complex parts, difficult materials and high-volume production.
VIEW CAPABILITIES →
Quality, Metrology & FAT
Dimensional inspection, sample verification and factory acceptance testing before machine delivery and production release.
VIEW CAPABILITIES →Who We Serve
From independent machine shops to industrial manufacturers, we provide CNC machines, tooling and application engineering tailored to your parts and production needs.
Manufacturing Companies
General manufacturers producing parts in batch — from automotive and valve components to electronics hardware. We supply the CNC machines, custom cutting tools and tooling that keep your lines running at stable cycle times.
Learn More →
Design, Engineering & Product Development Companies
Product design and engineering firms that turn concepts into manufacturable parts. Our engineers co-develop cutters and processes from your CAD models, with fast prototypes and design-for-manufacturing feedback.
Learn More →
Maintenance, Repair & Rebuild Workshops
MRO and rebuild workshops handle worn or obsolete parts, often in small batches and under tight shutdown schedules. Flexible machining and tooling solutions support one-off repairs, varied materials and urgent delivery requirements.
Learn More →
System Integrators, EPC & Turnkey Project Companies
System integrators and EPC contractors delivering complete production cells and turnkey lines. We provide machine and tooling packages per project, with fixtures, process parameters and on-site commissioning support.
Learn More →
Heavy Industry & Infrastructure Organizations
Heavy equipment, energy and infrastructure manufacturers machining big, hard parts where a failed tool stops the line. Heavy-duty milling, boring and large-diameter custom cutters keep your production moving.
Learn More →
Automation, Control, Testing & Verification Companies
Automation builders, test-equipment manufacturers and verification laboratories require reliable accuracy and repeatability. We provide precision machining, tooling and inspection documentation according to each project’s requirements.
Learn More →
Our mission is to connect specialized machine manufacturing, application engineering and international project support to deliver reliable CNC turning and automation solutions.
Technical Insights
Practical machining knowledge from our engineering floor — selection, processes, tooling and automation.
Spring Collet, Hydraulic Chuck, or Rubber Collet?
A practical workholding guide for small gang-type CNC lathes. Compare spring collets, hydraulic chucks and rubber-flex collets by stock form, wall thickness, gripping length, cutting load and production method—not material name alone.
Read article →
Vibration-Based Collision Monitoring for CNC Machine Tools
An engineering overview of vibration-based collision monitoring for CNC machine tools, covering machine-state baselines, alarm tuning, CNC/PLC integration, commissioning, and claims that should be verified before use.
Read article →
How to Choose Between Single-Spindle and Twin-Spindle Swiss-Type CNC Lathes
A practical guide to choosing between single-spindle and twin-spindle Swiss-type CNC lathes. Compare second-end machining needs, cycle time, tooling, automation, and total cost per part before selecting a configuration.
Read article →