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Precision Machining Services

Comprehensive machining capabilities for aerospace, defense, and industrial metals. From precision grinding and trepanning to milling, turning, and boring—we deliver semi-finished parts in the surface conditions and configurations your project demands. Fast turnaround with AS9100D certified quality.
Aero-Vac precision machining center performing turning operation on aerospace alloy steel component

Comprehensive Machining Capabilities for Every Requirement

Our value-added machining services transform raw materials into semi-finished parts ready for your final operations. With a vast range of equipment and decades of aerospace metals expertise, we deliver precision results on the most demanding specifications.

Precision Grinding

Surface grinding and Blanchard grinding for tight tolerances and superior surface finishes. Ideal for aerospace components requiring exact flatness and dimensional accuracy.

Trepanning & Boring

Create precise holes, hollows, and internal features in solid bar stock. Trepanning recovers valuable core material while boring achieves exact internal dimensions.

Milling Services

Remove material to create flat surfaces, slots, and complex geometries. Our milling capabilities handle a wide range of aerospace and industrial materials.

Turning & Rough Turning

Cylindrical machining for rounds, shafts, and rotational components. From rough turning to semi-finished dimensions, we prepare your parts for final operations.

Centerless Grinding

High-precision cylindrical grinding without centers for consistent diameter control and excellent surface finish on round bar stock.

Straightening Services

Correct bow, camber, and distortion in bar stock and shafts. Essential for materials that have undergone heat treatment or experienced handling stress.

Aerospace-Grade Precision

Value-Added Machining for Demanding Industries

Our machining services bridge the gap between raw material and your finished part. We provide materials in a variety of surface conditions and configurations—delivering semi-finished components that reduce your in-house machining time and material waste. Whether you need surface grinding for critical flatness, trepanning for hollow forgings, or rough turning to near-net shape, our experienced machinists and quality systems ensure consistent results on alloy steels, stainless steels, titanium, and nickel superalloys.

CNC machining center with aerospace alloy component showing precision surface finish
Machining Expertise

Our Machining Capabilities

From grinding to boring, our comprehensive machining services deliver the surface conditions, tolerances, and configurations your applications require.

Surface Grinding
Precision flat grinding for tight tolerances and superior surface finishes on plates, blocks, and flat components.
Blanchard Grinding
Rotary surface grinding for rapid material removal and consistent flatness on large surface areas.
Rough Machining
Initial material removal to near-net shape, reducing your downstream machining time and tooling costs.
Centerless Grinding
High-volume cylindrical grinding for consistent OD tolerances and surface finish on round bar stock.
Rough Turning
Lathe operations to reduce round stock to specified diameters, preparing material for your finish turning operations.
Straightening
Correct distortion and achieve specified straightness tolerances on bars, shafts, and heat-treated components.
Trepanning
Cut circular grooves to create rings or recover solid cores from bar stock—maximizing material utilization.
Boring
Enlarge and finish internal diameters to precise tolerances for hollow cylinders and tubular components.

Engineered for Precision

Our machining services combine advanced equipment with aerospace metals expertise to deliver consistent, high-quality results on every order.

At Aero-Vac, machining isn't just about removing material—it's about adding value. Our comprehensive machining capabilities allow us to deliver semi-finished parts that reduce your production time, minimize material waste, and ensure dimensional consistency. From precision surface grinding that achieves critical flatness specifications to trepanning operations that recover valuable core material, we approach every job with efficiency and quality in mind. Combined with our cutting, heat treatment, and testing services, we provide complete material solutions from a single, AS9100D-certified source.
8+ Processes
Machining Capabilities
AS9100D
Certified Quality System
99.6%
Quality Rating
Customer Success

Industry Success Stories

Discover how our precision machining services have helped aerospace, defense, and industrial customers streamline their production and meet demanding specifications.

"Aero-Vac's rough machining services have become integral to our production flow. They deliver 4340 rounds turned to within 0.010" of final dimension, which cuts our cycle time significantly. Consistent quality, every shipment."

SM

Steve Morrison

Production Supervisor, Aerospace Manufacturing

"We needed precision surface grinding on 15-5PH stainless plates to very tight flatness specs. Aero-Vac nailed it on the first order and has been our go-to supplier for ground plate ever since. Their quality documentation is always complete."

JW

Jennifer Walsh

Quality Manager, Defense Systems Inc.

"The trepanning service saved us thousands in material costs. Instead of boring out solid bar and scrapping the core, Aero-Vac trepanned our blanks and we used the recovered cores for smaller parts. Smart solution, great execution."

CR

Carlos Rivera

Engineering Manager, Precision Components

"Aero-Vac's rough machining services have become integral to our production flow. They deliver 4340 rounds turned to within 0.010" of final dimension, which cuts our cycle time significantly. Consistent quality, every shipment."

SM

Steve Morrison

Production Supervisor, Aerospace Manufacturing

"We needed precision surface grinding on 15-5PH stainless plates to very tight flatness specs. Aero-Vac nailed it on the first order and has been our go-to supplier for ground plate ever since. Their quality documentation is always complete."

JW

Jennifer Walsh

Quality Manager, Defense Systems Inc.

"The trepanning service saved us thousands in material costs. Instead of boring out solid bar and scrapping the core, Aero-Vac trepanned our blanks and we used the recovered cores for smaller parts. Smart solution, great execution."

CR

Carlos Rivera

Engineering Manager, Precision Components

Frequently Asked Questions

What machining services do you offer?
We offer comprehensive machining services including surface grinding, Blanchard grinding, rough machining, centerless grinding, rough turning, straightening, trepanning, and boring. These value-added services allow us to deliver semi-finished parts in the surface conditions and configurations your applications require.
What materials can you machine?
We machine the full range of aerospace and industrial metals including alloy steels (4130, 4140, 4340, 300M, HP9-4-20, HP9-4-30), stainless steels (17-4PH, 15-5PH, 13-8MO, 300/400 series), titanium alloys (6Al-4V), and nickel superalloys (Inconel 625, 718, etc.).
Can you machine materials I supply?
Yes, we offer machining services on customer-supplied materials. Whether you need grinding, turning, or other operations on material you've sourced elsewhere, we can help. Contact us with your requirements for a quote.
What tolerances can you hold?
Tolerances depend on the specific operation and material. Our precision grinding operations can achieve very tight flatness and dimensional tolerances suitable for aerospace applications. Contact us with your specific requirements and we'll confirm our capabilities.
Do you provide inspection documentation?
Yes, all machining services are performed under our AS9100D/ISO 9001 quality management system. We provide complete documentation including dimensional inspection reports, material certifications, and any additional documentation required by your specifications.

Our Machining & Processing Facility

Centrally located at the Port of Kalama, Washington, our facility houses comprehensive machining equipment alongside our cutting, heat treatment coordination, and testing services.

Kalama, Washington

Machining & Processing Facility

Aerospace

Defense

Medical

Oil & Gas

Power Generation

Industrial

Quality Excellence
Quality Standards and Certifications
AS9100D / ISO 9001 Certified
Our machining services operate under certified quality management systems meeting aerospace and defense industry requirements.
Complete Documentation
Dimensional inspection reports, material certifications, and full traceability documentation provided with every machined order.
OEM Approved
Trusted by Bombardier, Honeywell, Airbus, Lockheed, General Dynamics, and major aerospace and defense prime contractors.
Ready to Get Your Machining Project Started?
Let's discuss your machining requirements today
Call us at 1-877-AEROVAC (237-6822) or email [email protected] for immediate assistance. Our expert team is ready to provide fast quotes on precision machining, grinding, turning, and complete material processing solutions.
Visit Our Facility: Port of Kalama, 2615 N. Hendrickson Dr., Kalama, WA 98625 USA
Contact Us Today