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mill capabilities

 Steelcrest Precision provides CNC milling for intricate components, complex geometries, and large-format workpieces. Our vertical, horizontal, multi-axis, bridge, and multi-tasking capabilities help improve accuracy, reduce setups, and support programs from prototype through production. 

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Equipment & Capacity

From straightforward plates, brackets, and fixtures to complex components requiring multi-face machining and large work envelopes, Steelcrest has the CNC milling equipment and experience to match the right process and capacity to each application. 

Mill - Misc

small & medium vertical milling

  • Supported by a fleet of 36 CNC vertical mills
  • High speed machining cap.
  • Capacity up to 30" × 45"
  • Best suited for tight-tolerance, multi-feature components

 

Mill - Round plate

Large-Format & Part milling

  • Johnford capacity up to 80" × 50"
  • Haas VF-10 capacity up to 120" × 20"
  • Supports large plates, long rails, fixtures, and structural components
  • Oversized workpieces can be evaluated based on setup, repositioning, and accuracy requirements
integrex-multitasking-no-coolant

multi-tasking machining

  • INTEGREX and Hyper Quadrex platforms
  • Combines CNC turning, milling, and drilling in one setup
  • Helps improve concentricity, positional accuracy, and feature-to-feature consistency
  • Automated spindle-to-spindle part transfer supports unattended machining
5-axis

5-axis cnc milling

  • 5 CNC 5-axis vertical mills, including a Haas UMC-750
  • Fleet capacity up to X=30", Y=20", Z=20"
  • Ideal for compound angles, angled holes, and multi-sided machining in fewer setups
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horizontal cnc milling

  • 8 CNC horizontal machining centers
  • Capacity up to X=64", Y=50", Z=32"
  • Ideal for multi-sided machining and efficient repeat production
horizontal-pallet-system-card

horizontal pallet system

  • Palletized workholding supports efficient loading and changeovers
  • Enables multi-sided machining with fewer setups
  • Ideal for repeat production and consistent feature relationships

 

Tolerances & Surface Finishes 

 Steelcrest combines versatile CNC milling platforms with experienced programming, workholding, and in-process inspection to produce consistent, accurate components. Final tolerances and finishes depend on material, geometry, feature location, part size, and production requirements, but our general milling capabilities include: 

Capability
General Specification
Standard CNC milling Approx. ±0.001″, excluding true-position callouts 
Side-milled surface finish  Finishes up to 32 Ra
Face-milled surface finish   Finishes up to 63 Ra  
5-axis CNC milling Holding tolerances to ±0.001″ 
Tilted-hole positioning Positional tolerances to ±0.003″ 
5-axis rotational positioning  Approximately ±0.002″–±0.003″ 
INTEGREX multi-task milling Holding tolerances to ±0.0005″ 
INTEGREX milled surface finish Finishes up to 32 Ra 

 

Frequently Asked Questions

What CNC milling services does Steelcrest Precision offer?

 Steelcrest Precision offers vertical CNC milling, horizontal CNC milling, 5-axis machining, large-format and long-part milling, horizontal pallet machining, and multi-tasking. These CNC milling capabilities support plates, brackets, fixtures, rails, structural components, and complex parts requiring multiple machined features. 

What is the largest part Steelcrest Precision can CNC mill?

 Steelcrest’s large-format milling capabilities include Johnford capacity up to 80 × 50 inches and Haas VF-10 capacity up to 120 × 20 inches. Oversized workpieces can also be evaluated based on their geometry, workholding, repositioning, tolerance, and accuracy requirements. 

What tolerances and surface finishes can Steelcrest achieve with CNC milling?

 Steelcrest can hold standard CNC milling tolerances of ±0.001 inch, excluding true-position callouts. Side-milled finishes as fine as 32 Ra and face-milled finishes as fine as 63 Ra are possible, depending on the material, geometry, part size, and application. 

What is 5-axis CNC milling, and when should it be used?

 Five-axis CNC milling allows a cutting tool to approach a component from multiple directions, making it ideal for compound angles, angled holes, complex geometries, and multi-sided parts. Steelcrest operates five CNC 5-axis vertical mills, including a Haas UMC-750, with fleet capacity up to X = 30 inches, Y = 20 inches, and Z = 20 inches. 

What is the difference between vertical and horizontal CNC milling?

 Vertical CNC mills use a vertically oriented spindle and are well suited for plates, brackets, fixtures, and multi-feature components. Horizontal machining centers use a horizontal spindle and can efficiently machine multiple sides of a part with fewer setups, making them especially valuable for complex components and repeat production. 

What are Steelcrest’s horizontal CNC milling capabilities?

 Steelcrest operates eight CNC horizontal machining centers with capacity up to X = 64 inches, Y = 50 inches, and Z = 32 inches. Horizontal CNC milling is ideal for multi-sided machining, consistent feature relationships, efficient chip removal, and repeat production. 

What are the benefits of a horizontal pallet system?

 A horizontal pallet system supports efficient loading, workholding, and changeovers between machining cycles. Palletized CNC machining can reduce setup time, improve repeatability, and maintain consistent feature relationships across repeat-production components. 

Does Steelcrest offer multi-tasking CNC machining?

 Yes. Steelcrest uses INTEGREX and Hyper Quadrex platforms to combine CNC milling, turning, and drilling in one setup. Multi-tasking can reduce part handling and improve concentricity, positional accuracy, and feature-to-feature consistency. 

What materials can Steelcrest Precision CNC mill?

 Steelcrest CNC mills a range of metals used in demanding industrial applications. Examples include 17-4 H1075 stainless steel, 17-4 PH stainless steel, 420 stainless steel, and FLEXOR alloy steel. Material, hardness, geometry, tolerances, and secondary-processing requirements are reviewed for every project. 

What information is needed to request a CNC milling quote?

 To request a CNC milling quote, provide a part drawing or 3D model, material specification, required tolerances, estimated quantities, surface-finish requirements, and desired delivery date. Include any inspection, heat treatment, grinding, assembly, certification, or documentation requirements so Steelcrest can accurately evaluate the complete project. 

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Share your drawing, material, tolerances, and production requirements. We'll help identify the right process for your program. 

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