Capabilities - CNC Swiss Screw Machine Parts | CNC Turned Parts
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CNC Swiss Screw Machined Parts, Turned Parts & Centerless Grinding Services

IMG_6508-pioneer-113-EditPioneer Service is a contract manufacturer providing Swiss screw machine parts and CNC turned parts in prototype and production quantities. We are able to meet demanding needs for precision machined components and sub-assemblies for industries including medical, automotive, fastener, hardware, motor/pumps, HVAC, motion control, oil and gas and many others. Pioneer Service has been providing custom machined solutions from our 25,000 square-foot facility located in the Chicago suburb of Addison, IL since 1990.

IMG_3495-Pioneer-0049-EditWe have CNC Swiss lathes, CNC turning centers and automatic screw machines with specialized attachments to consolidate operations. Parts can be provided with internal and external threading, knurling, slotting, cross drilling and tapping and more.  In addition, our in-house centerless grinding capabilities deliver precision, micro-finished surfaces as low as 2RMS with extremely quick turnarounds.

CNC Swiss Screw Machine Parts

IMG_3500-Pioneer-0054-EditFor complex parts diameter with tight tolerances, our Swiss screw machines offer:

  • Long parts
  • High accuracy parts with tolerances in the .0005’s in inches
  • Complex parts with multiple operations handled in one set-up
  • Cost-effective parts, especially for quantities over 5,000

CNC Turning Center Parts

For complex geometries and short runs, including prototypes, our CNC turning centers offer:

  • In-line product features without secondary operations
  • Tighter tolerances than traditional screw machines
  • Reduced tooling costs
  • Faster delivery of prototypes and production quantities
  • Flexible order quantities
  • Part diameters from .140” and lengths up to 20” long

Pioneer Service specializes in accommodating short lead-time requirements for orders of all quantities.  To accomplish this, we intentionally stock multiple grades and sizes of raw material (including stainless steel).  We utilize our in-house straightening and grinding capabilities and offer customizable WIP and finished goods stocking programs for discreet, blanket and consignment orders.

Parts Centerless Grinding Services

For parts with tight tolerances on the OD, or flats, centerless grinding may be an option. Pioneer Service offers both in-feed and thru-feed grinding for parts. (In addition to in-house bar grinding capability.) You may send in your parts for grinding or it may be part of the process for a part that Pioneer Service is making on other equipment.

  • In-Feed Grinding
    • Part Diameter Range: .0625″ to 1.5″
    • Part Length Range: .250″ to 6.0″
  • Thru-Feed Grinding
    • Part Diameter Range: .0625″ to 1.5″
    • Part Length Range: .250″ up to 6″ (depending on diameter)
  • Common Tolerances
    • OD: +/-.0001″
    • Straightness: .003″/in
    • Concentricity: .002″
    • Run-out: .002″
    • Surface finish (Ra): 6 micro-inch

CNC turned parts, brass turned parts, stainless steel turned parts, 303 stainless turned parts, CNC prototyping services, precision turning parts.

CNC Swiss Screw Machining has lots of tooling options for complex parts.

CNC Swiss Screw Machining has lots of tooling options for complex parts.

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“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