Products based in Crown Point, Indiana

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Below are some of the custom items manufactured by Rohder Machine & Tool, Inc. for our clients in the past.

Aluminum Bronze Crowd Drive

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Primarily working with mining applications, Rohder Machine and Tool CNC machined this aluminum bronze crowd drive for a client within the surface mining industry. We manufactured this product through a combination of CNC turning and milling processes, and included a chamfer hole on both sides of the crowd drive. We held the tolerance down to ±0.005 inches throughout the process. We achieved a maximum material finish of 125 Ra. With an approximate weight of 18 lbs., this new aluminum bronze crowd drive measured 21.750 inches in length with a diameter of 2.015 inches and a thread of 2.000-4.5 UNC-2A. To learn more about our projects and services, as well as industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Machined Aluminum Bronze Crowd Drive
 
Product Description
 
This crowd drive is used within surface mining equipment.
 
 
Capabilities Applied/Processes
 
 
CNC Turning
Rough & Finish Turn O.D.
Groove O.D.
Thread O.D.
 
CNC Milling
Mill Hex
Drill & Bore Hole Thru
Chamfer Hole Both Sides
 
 
 
Overall Part Dimensions
 
 
 
Length: 21.750"
O.D.: Ø2.015"
 
Thread: 2.000-4.5 UNC-2A
 
 
 
Tightest Tolerances
 
 
±.005"
 
 
Materials Used
 
 
Aluminum Bronze
 
 
Max Material Finish
 
 
125 Ra
 
 
Estimated Part Weight
 
 
18lbs
 
 
Industry for Use
 
 
Mining
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Aluminum Bronze Crowd Drive
 
 

Steel Gear Case Stud

Catering to mining clients, Rohder Machine and Tool CNC turned this stud designed for use within a gear case for a mining application. In addition to turning, we applied roll threading during the manufacture of the steel gear case stud and conducted inspection to ensure standards were met. Working within the tightest tolerances of ±0.002 inches, the maximum material finish was 63 Ra. With an approximate weight of 16.5 lbs., this steel based stud measured 26.000 inches in length with a diameter of 1.750 inches and a thread of 1.7500-5UNR-2A. To learn more about our machining services, including industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Turned Steel Gear Case Stud
 
Product Description
 
This stud is used within a gear case for a mining application
 
 
Capabilities Applied/Processes
 
 
CNC Turning
Rough & Finish Turn O.D.
Groove O.D.
Thread O.D.
 
Roll Threading
Inspection
 
 
 
Overall Part Dimensions
 
 
 
Length: 26.000"
O.D.: Ø1.750"
 
Thread: 1.7500-5UNR-2A
 
 
 
Tightest Tolerances
 
 
±.002"
 
 
Materials Used
 
 
4340 Steel
 
 
Max Material Finish
 
 
63 Ra
 
 
Estimated Part Weight
 
 
16.5lbs
 
 
Industry for Use
 
 
Mining
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Steel Gear Case Stud
 
 

Steel Ratchet Gear

Tailoring our process to meet the needs of a material handling industry client, Rohder Machine and Tool CNC machined this steel ratchet gear. We rough and finish turned both the inside and outside diameters. Next, we milled the ratchet teeth profile, and drilled necessary holes. We held tolerances down to ±0.001 inches throughout the process, and achieved a maximum material finish of 32 Ra. The overall dimension of this steel ratchet gear measured 3.000 inches high, with an outside diameter of 16.000 inches, an inside diameter of 6.875 inches and a total of 23 teeth. To learn more about our projects and services, as well as industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Machined Steel Ratchet Gear
 
Product Description
 
This ratchet gear is used within a material handling application.
 
 
Capabilities Applied/Processes
 
 
CNC Turning
Rough & Finish Turn O.D.
Rough & Finish Turn I.D.
 
CNC Milling
Mill Ratchet Teeth Profile
Drill 11 Oil Holes Thru
Drill & Tap 1 Hole
 
 
 
Overall Part Dimensions
 
 
 
O.D.: Ø16.000"
I.D.: Ø6.875"
 
Height: 3.000"
Teeth: 23
 
 
 
Tightest Tolerances
 
 
±.001"
 
 
Materials Used
 
 
1045 Steel
 
 
Max Material Finish
 
 
32 Ra
 
 
Industry for Use
 
 
Material Handling
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Steel Ratchet Gear
 
 

Steel Hex Socket Cap Screws

Rohder Machine and Tool CNC turned these steel hex socket cap screws for use within a hardware application. We manufactured these screws using several methods, including hot forging, CNC turning, and roll threading. The final components featured an outer diameter of 1.50 inches, a hardness of 38/40 Rc and a thread of 1-1/2"-6-2A. We held tolerances down to ±0.002 inches, achieving a maximum material finish of 63 Ra. To learn more about our projects and services, as well as industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Machined Steel Ratchet
 
Product Description
 
These specialty hex socket cap screws are used within hardware applications.
 
 
Capabilities Applied/Processes
 
 
Hot Forging
Forge Blank
CNC Turning
Rough & Finish Turn O.D.
Undercut O.D.
Chamfer O.D.
 
Roll Threading
 
 
 
Overall Part Dimensions
 
 
 
O.D.: Ø1.50
Thread: 1-1/2"-6-2A
 
Hardness: 38/40 Rc
 
 
 
Tightest Tolerances
 
 
±.002"
 
 
Materials Used
 
 
4340 Steel
 
 
Max Material Finish
 
 
63 Ra
 
 
Industry for Use
 
 
Hardware
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Specialty Hex Socket Head Cap Screws
 
 

Steel Trunnion Bolts

As a solution for a client in the power generation industry, Rohder Machine and Tool manufactured this Steel Trunnion Bolt using hot forging and CNC turning. During these processes, we rough and finish turned, undercut, chamfered, and threaded the outside diameters. The final bolts had an outside diameter of 2.50 inches, a hardness of 26/30 Rc and a thread of 2-1/2"-4-3A. To meet the customer's supplied standards, we held the tolerance down to ±0.005 inches, and achieved a maximum material finish of 63 Ra. To learn more about our products and services, as well as industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Turned Steel Trunnion Bolts
 
Product Description
 
These trunnion bolts are used within a power generation application.
 
 
Capabilities Applied/Processes
 
 
Hot Forging
Forge Blank
 
CNC Turning
Rough & Finish Turn O.D.
Undercut O.D.
Chamfer O.D.
Thread O.D.
 
 
 
Overall Part Dimensions
 
 
 
O.D.: Ø1.50
Thread: 1-1/2"-6-2A
 
Hardness: 38/40 Rc
 
 
 
Tightest Tolerances
 
 
±.005"
 
 
Materials Used
 
 
4140 Steel
 
 
Max Material Finish
 
 
63 Ra
 
 
Industry for Use
 
 
Power Generation
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Steel Trunnion Bolts
 
 

Steel Frame Assemblies

Rohder Machine and Tool manufactured this steel frame assembly to accommodate a client in the steel mill industry. Using several processes, including CNC turning, CNC milling, MIG and TIG welding, and assembly, we worked with conventional and stainless steel. The final assembly had a length, width, and height of 32 inches, 28 inches, and 38 inches, respectively. We held tolerances down to ±0.005 inches, and achieved a maximum material finish of 125 Ra. To learn more about our projects and services, as well as industry standards, please contact Rohder Machine and Bolt or see below for details.
Project Highlights for CNC Machined Steel Frame Assemblies
 
Product Description
 
This steel frame assembly is used within a steel mill application
 
 
Capabilities Applied/Processes
 
 
CNC Turning
CNC Milling
 
Welding
Assembly
 
 
 
Overall Part Dimensions
 
 
 
Length: 32"
Width: 28"
 
Height: 38"
 
 
 
Tightest Tolerances
 
 
±.005"
 
 
Materials Used
 
 
1018 Steel
304 Stainless Steel
 
 
Max Material Finish
 
 
125 Ra
 
 
Industry for Use
 
 
Steel Mill
 
 
Standards Met
 
 
Customer supplied print, 2D CAD Drawing
 
 
Product Name
 
 
Steel Frame Assemblies