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Work Capabilities

Overview

Our manufacturing capabilities allow us to offer customers the versatility, fair prices, quick turn around, and guaranteed quality that they have learned to expect. Of course, we're always looking to the future, planning capability expansion and improvement. Our intentions are to continuously monitor the needs of our customers, and to strive to fulfill those needs.

 

General

Year Founded: 1955

# of machinists: 20

Average machining experience: 9.5 years

Size of buildings: 16,500 square feet

 

Commonly Machined Materials

All free machining steels

Alloy steels such as 4140, 6150, 52100, ETD 150, and Stressproof

Stainless steels (300 and 400 series)

Brass, Bronze, Copper, Aluminum

Monel, Inconel, Titanium

Delrin, Peek, Eyrtalite, Polyethaline, Urethane, UHMW

 

Common Product Types

Plungers / Valves / Pistons / Rotors

Valve Bodies / Housings

Needles / Pins

Spacers / Washers / Collars

Cables

Wear Sleeves

Tie Rods

 

CNC turning

We currently have eleven CNC lathes and six manual lathes. We use the CNC's for practically all production runs. They can run bars from 0 to 2.375" diameter through their spindles and up to 8" diameter using a chuck.

Four of our lathes have sub-spindles and "live tool" capability. They are used to efficiently finish many parts in a single operation.

 

"Swiss" turning

Many parts are more effectively produced on our three swiss type lathes. These machines:

always support the bar close to the cut (about 1/8")

run up to 10,000 RPM for quick run times and excellent

surface finishes

change tools very fast

use "live" tools and an indexing spindle to machine parts

complete in one setup

Some very long, small diameter parts which are impractical to machine on conventional lathes, are easily machined with these. Our swiss type machines have bar capacities of 5/8".

 

Milling

We're now running four CNC machining centers and three manual mills. Two of the CNC's feature automatic tool changers, 4 axes, and 22" X 16" of travel. Our newest machining center has 32" X 20" travel, 4 axes, through-tool coolant, an automatic pallet changer, and an ATC with .2 second tool change time.

 

Grinding

We have, for more than 30 years, provided a high quality centerless grinding and honing service. We normally grind OD's up to 2.5" and hone ID's of 2" or less. We also provide cylindrical and double disc grinding. Our double disc grinder can quickly and easily grind both sides of most spacers and washers to within .0002" flatness and parallelism, 10 microinch finish, and .0003" of specified length.

 

Additional operations

Many of our customers rely on us to make finished products from bar stock. Some of those products are multiple part assemblies and most require multiple production steps to complete. As a result, we've developed various secondary machining, finishing, and assembly methods using all sorts of general shop tools, machines, designated jigs and fixtures, custom tooling, etc. We also have long standing relationships with top-notch suppliers for castings, heat treating, plating, black oxiding, and hard coating.

Quality Assurance

At the very heart of our operations, is our Quality Assurance system. We have been actively improving and documenting our quality procedures since 1989. We're currently working to gain ISO 9002 certification. All of our customers are welcome to audit and survey our quality system.

Upon request, all of our customers are able to monitor the variation of their parts by examining the statistical data and reports which are generated by our machinists and inspectors during production. Also upon request, we will submit quality planning instructions (Control Plans) to customers for each product that we make for them. The Control Plan outlines the overall production and inspection process that is used for a part. It also lists all control characteristics which will be monitored using SPC.

 

Summary

We have always taught and relied on solid, fundamental machining practices, and we specialize in performing production runs to exact specifications; but, some customers have relied on us to design, prototype, and then produce products based on their end function. Also, many times we have been called upon to produce parts which were uncommonly difficult to machine "to spec". We have, therefore, developed in-house drafting and tolerancing skills, and we have a long list of qualified engineers to call upon for assistance with production challenges.

We take pride in being a supplier with solutions, instead of a supplier with excuses. Working for a variety of customers for so many years (each having unique needs and expectations), we have learned to carefully ascertain our customers' product needs and relentlessly strive to meet those needs "the first time".

 

Equipment List

Programming

12 station PC network equipped with software for

CAD/CAM

SPC

Scheduling

Inventory management

Purchasing/Receiving

Job costing/tracking

Accounting

Estimation/quoting

MRP

Document routing

Work Instructions

Quality Planning

Gage Calibration

Lathes

1 – Daewoo Puma 200 CNC Bar Machine

  • Bar Capacity .5" – 2.5" diameter through spindle
  • Equipped with 10" Chucks for larger work
  • Subspindle for back work
  • 12 station turret with live tooling
  • C-axis

1 - Miyano BND-34s CNC Bar Machine

  • Bar Capacity 0 - 1.375" diameter
  • 8 station turret with live tooling
  • Subspindle
  • 7.5 indexable spindle

1 - Miyano BND-42s CNC Bar Machine

  • Bar Capacity 0 - 1.625" diameter
  • 8 station turret with live tooling
  • Subspindle
  • 7.5 indexable spindle

3 - Miyano BNC-34 CNC Bar Machines

  • Bar Capacity 0 - 1.375" diameter
  • Maximum Work Length - 9"

3 - Miyano JNC-60 CNC Bar Machines

  • Bar Capacity .5" - 2.375" diameter through spindle
  • Equipped with 10" Chucks for larger work
  • Maximum Work Length - 18.5"

2 - Citizen L16 IV CNC Turning Center

  • 5 axes
  • 2 "live" tools
  • 15 indexable spindle
  • Bar Capacity 0 - 5/8" diameter

1 - Citizen L16 CNC Turning Center

  • Capacity 0 - 5/8" diameter
  • 8 tool stations

1 - 14" Rockwell Engine Lathe

  • 36" between centers

1 - 13" Clausing Engine Lathe

  • 36" between centers

3 - 11" Logan Engine Lathes

  • 24" between centers

1 - 10" South Bend Engine Lathe

  • 24" between centers

 

Milling

1 - Hurco KMB1 Vertical CNC Mill

  • "X" Travel - 24"
  • "Y" Travel - 14"
  • "Z" Travel - 6"

1 - Leadwell VMC 500 Vertical CNC Machining Center

  • "X" Travel - 22"
  • "Y" Travel - 14"
  • "Z" Travel - 16"
  • SMW 4th Axis

1 - Mazak VTC-41 CNC Vertical Machining Center

  • "X" Travel - 22"
  • "Y" Travel - 16"
  • "Z" Travel - 20"
  • Kitigawa 4th Axis

1 - Mori-Sieki SV50 CNC Vertical Machining Center

  • "X" Travel - 31.5"
  • "Y" Travel - 20"
  • "Z" Travel - 20"
  • Tsudakoma 4th Axis
  • Automatic Pallet Changer
  • 30 HP spindle motor

1 - Brown & Sharp #2 Universal Mill

1 - YC 1.5 Maxmill

1 - Rockwell Universal Mill

 

Honing

1 - Sunnen Automatic Stroke Honing Machine

  • 1/8" - 2" Bore

1 - Sunnen Hand Stroke Honing Machine

  • 1/8" - 2" Bore

 

Grinding

1 - #2 Cincinnati Centerless Grinder

1 - 200 Series Cincinnati Centerless Grinder

1 - 6" Model ER Cincinnati Cylindrical Grinder

1 - #DH6-30 Besley Double End Disc Grinder

 

Assembly

Wire/Tig Welding equipment

Acetylene Torch (for soldering/brazing)

Taumel Orbital Headforming (Bradding) Machine

10,000 lb Hydraulic press

Various arbor presses/vices

Cable cutting, stripping, and stretching equipment

 

Drilling/Tapping

5 - general purpose drill presses

1 - multi-spindle drill press

1 - universal tapping machine

1 - Enco tapping head

2 - Kennametal tapping heads

 

Surface finishing

2 - Vibratory finishing machines

3 - Empire Sandblasting Stations

6 - Belt Sanders

4 - buffing/polishing/grinding stations

1 - pneumatic file

3 - pneumatic die grinders

Many various finishing products

 

Sawing

2 - cutoff saws

1 - "Roll-in" band saw

1 - 1016 WellSaw

1 – Amada 250 horizontal saw

 

Inspection Standards

All company and employee owned inspection instruments and working standards are routinely calibrated to one of the following measurement standards:

1 - 36 piece Gage Block Set

Inspection Grade A+

+0.000004 / -0.000002

1 - PDR Precision Reference Standard Surface Roughness Plate

These "master" standards are routinely sent for calibration by a certified gage calibration company.

Company owned inspection equipment

1 - 6" X 6" X 8" Micro-Vu 3D Automated Visual CMM

5 - 0-1" Mitutoyo Digital Micrometers .000050 Resolution

3 - 1-2" Mitutoyo Digital Micrometers .000050 Resolution

1 - 0-1" Brown & Sharp Digital Micrometer

1 - 0-1" Starrett "V" Anvil Micrometer

1 - 0-6" Lufkin Micrometer Set

1 - Mitutoyo Tube Micrometer

1 - Mitutoyo Blade Micrometer

1 - Mitutoyo Disc Micrometer

1 - 2-12" Lufkin Internal Micrometers

2 - 0-3" Lufkin Depth Micrometers

2 - 0-1" Mitutoyo Thread Pitch Micrometers

2 - 1-2" Mitutoyo Thread Pitch Micrometers

1 - 60 Degree Thread Wire Set

4 - PG-800 Sunnen Precision Gauges

1 - PG-400 Sunnen Gauge Setting Fixture

2 - .1-2" Precision gage block set

6 - .001" Mitutoyo Dial Indicators

3 - .0001" Mitutoyo Dial Indicators

1 - .0001" Mitutoyo Digital Indicator

1 - .00005" Mitutoyo Digital Indicator

2 - .00005" Mahr Dial Indicators

2 - Indicator Point Sets

1 - Starrett "Last Word" Test Indicator Set

1 - .0001" Dial Test Indicator

1 - .0005" Dial Test Indicator

4 - 0-6" Mitutoyo Digital Calipers

3 - 0-6" .001 Brown & Sharp Vernier Calipers

1 - 0-6" .001 Mitutoyo Vernier Calipers

1 - 0-8" .001 Mitutoyo Vernier Calipers

1 - 6" to 30" Unique Caliper Extension

1 - S22 Microfinish Comparitor

1 - 14" Micro Vu Optical Comparitor with Q16 Metrology

1 - Surfometer System I

1 - .011-.060 Meyer pin gage set in .001 increments

1 - .061-.250 Meyer pin gage set in .001 increments

1 - .251-.500 Meyer pin gage set in .001 increments

6 - 6" Granite Plates with Indicator Posts

1 - 24" X 36" Starrett Granite Plate

1 - Mitutoyo Digimatic Height Gage

1 - 5/16" to 2 1/8" Starrett Telescoping Gage Set

1 - .7 to 1.5" Teclock Cylinder Gauge

1 - .165" to .500" Dia-Test Internal Hole Gauge

1 - Phase II Rockwell Hardness Tester

The company owns many "general purpose" inspection tools such as protractors, radius gages,V-blocks, feeler gages, etc. We keep an assortment of certified pin, plug, ring, and thread gages (go/no-go) which are bought as needed.

We also use designated gaging systems for individual jobs and calibrate those gages before each job run.

Employee owned inspection equipment

Each employee is required to own and maintain certain gages (depending on his job responsibilities). Everyone has their own calipers and most have digital micrometers. Our Company Policy requires that all gages used to measure deliverable products are subjected to periodic inspection/calibration procedures which are performed by qualified QA personnel.

 

 

 

 

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"Derita Precision Machine Co." and "DPMC" are registered trademarks of Derita Precision Machine Co. Inc. All Rights Reserved