Manufacturing Capabilities - Machine Shop - CNC Swiss Screw Machine Parts | CNC Turned Parts
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CNC  Swiss Lathes, CNC Turning Centers, Screw Machines and Centerless Grinding Services

When you’re looking for screw machine shops, we know you have a lot of choices. Pioneer Service has the capability to make a wide range of parts and the expertise to ensure fast delivery of top-quality parts. We have Swiss CNC lathes (screw machines) and CNC turning centers. In addition, we have centerless grinding capabilities for CNC parts with tight tolerances and critical surface finishes. The products we make start as round or shaped bar or tube. They are transformed into complex parts for an infinite number of applications. The materials we work with include steel, stainless steel, copper, tool steel, aluminum and a number of plastics.03

Our equipment allows us to make a wide range of custom screw machine products and turned parts. The production parts vary from .010” to 2.5” in OD at the widest place and can be up to 20” long. Prototype quantities can go up to 8.5″ OD.  Send us your print for a quote.

We are committed to supplying machined parts to the highest quality standards while offering services that make doing business easy. Whether you need a finished part or centerless grinding services, Pioneer Service can help.

Overview of Capabilities

Outer Diameter (OD) From .040″ – Swiss Screw Machines
.145″ (3.7 mm) through 2.5″ (65 mm) 3.7 mm Colleted – CNC Turning Center
2.5″ (65 mm) through 8.5″ (220 mm) Chucked – CNC Turning Center
.045″ (1.14 mm) through 1.5″ (38.1 mm) – Centerless Grinders
Overall Lengths 20.5″ (520 mm) – CNC Turning Center
8.0″ (205 mm) – Swiss Machining
48″ (1.8 m) – Centerless Grinding
Tolerances +/-.0001″ (2.5 micron)
Feature Capabilities Boring
Cross tapping
Custom tapering
Drilling, cross drilling
Eccentric Holes
External Splining
Grinding, centerless – through-feed and in-feed grinding (plunge grinding)
Thread milling
Threading external
Threading internal
Thread whirling
Turning: Contour turning, form turning, taper turning, straight turning
Specialty Shafts Concentric Shafts
Eccentric Shafts
Knurled Shafts
Offset Shafts
Splined Shafts
Step Shafts
Threaded Shafts
Volumes Prototype to Production (1 and up)
Industry Standards AS9100D and ISO 9001:2015 Certified
Service Capabilities Custom packaging
Inventory management (Kanban, Blanket Orders, Just In Time Deliveries, Rush Services)
Material Traceability
CNC Turning Equipment Samsung CNC Turning Centers
Live Tooling
6-Axis CNC
Dual Spindle
CNC Control Capabilities
Fully integrated bar feeders
CNC Swiss Equipment Star 10 mm (.393″) Swiss Style Lathes
Star 32 mm (1.26″) Swiss Style Lathes
Star 20 mm (.787″) Swiss Style Lathes
Fully integrated bar feeders
Quality Equipment Automated Micro-Vu Vertex Measuring Center
Oasis Vision Inspection
Optical Comparators
Hardness Tester
SPC Data Collection
Height Gauge
Concentricity Gauge
Certified Counting Scale
Quality Documentation Inspection Report
First Article Inspection
Materials (Metals) Alloy Steels (4130, 4140)
Aluminum (2011 6061-T6, 2024)
Bronze Alloys
Carbon Steel (12L14, 1215)
Stainless Steel (303, 304, 316, 321, 303SE, 420, 440C, 17-4)
And much more!
Materials (Plastics) ABS (Acrylonitrile Butadiene Styrene)
Fiberglass Reinforced Plastics
Polycarbonate (Delrin®)
Polyetheretherketone (PEEK)
Polyphenylene Sulfide
PTFE (PolyTetraFluoroEthylene)
PVC (Polyvinyl Chloride)
PVDF (Polyvinylidene Fluoride)
Additional Services Provided by Approved Partners Anodizing
Black Oxide
Heat Treating



“We received your shipment of XXX-XXX. They look great and everything seems to be in spec. They also perform really well which is a huge deal for us as it's given us clarity for our upcoming product release. Thanks again for the quick turn around and all your help!”
Chris H.- Product Development
“Thank you Eric! You have saved our reputation.I am really happy that we will be able to ship them tomorrow. Thank you !!!!!!!!”
Gregory K.- Instrumentation
“You guys are the best!Thank you all for your prompt replies and support. You continue to impress me.”
Mike U.- Aerospace/Defense Company
“Thank you Eric! You have saved our reputation.I am really happy that we will be able to ship them tomorrow. Thank you !!!!!!!!”
Gregory K.- Instrumentation
“We are very pleased with the outcome of the first bushing Pioneer Service produced. I sent an e-mail to James Sass and informed him we will be sending a second bushing we will be needing.”
David M.- Firearms Manufacturer
“My compliments to you and the team for hitting a home run!”
Gene D.- Automotive Aftermarket Manufacturer
“Attached is the new PO … You guys are doing a great job and on time delivery and quality are superb. Keep up the good work.”
Eric H.- Power Industry
“I see your commitment to quality and your deliveries are excellent. I look forward to continue building this relationship.”
Brad D.- Oil & Gas
“I am pleased to let you know that everything was perfect. The documentation was solid, the parts were all within specifications, and they assembled as designed. Not even a single part was out of spec. !”
Scott L.- Medical Device Mfg.
“We got the parts in yesterday afternoon. I opened the box and checked out a few and they looked GREAT! Thanks for all your help, and please pass along our gratitude to your crew as well! AND … thanks for doing such a nice job on the packaging, too.”
Todd K.- Furniture Mfg.
We have been purchasing shafts for our electric motors from Pioneer Service for decades. Pioneer is one of the best, if not the best, supplier of any product we have ever had. Their consistent quality, aggressive pricing and fast response time is unmatched!
Dave B.- Operations Mgr/Sub-fractional AC Motors
Pioneer Service has been a long time supplier and our plants use millions of Pioneer shafts per year. We have had ZERO quality or delivery issues with Pioneer. Forecasting, in our industry, is very difficult and we know we can always rely on Pioneer to expedite our rush orders!
Mike S.- Commodity Mgr/Electric Motors Mfg.
“Pioneer Service…fast quotes, clear communication, good quality, attractive pricing. One of my best vendors!”
Jay B.- Manufacturing Job Shop