M.A.R.'s Engineering Company Inc.
699 Montague Avenue, San Leandro, CA 94577
Phone: 510.483.0541 • Fax: 510.483.1829
Email: info@marseng.com • Web Address:
www.marseng.com
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Screw Machining Services
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Precision screw machining of complex parts to close tolerances has been our specialty service since 1964. With a total of 35 single- and multi-spindle screw machines, we are able to service our customers with a range of small and large quantities. Unlike CNC machines, the Brown & Sharpe (single-spindle) screw machines can perform up to five operations at one time, and the multi-spindle machines up to 18 operations at one time, all while holding a tolerance of .001 (one thousandth) of an inch. Machines are also equipped with cross drilling and milling, eliminating the need for second operations.
Our machines have diametrical capacities that range from .032 to 3 1/4 inches. Some of the special operations our Brown & Sharpes perform are drilling, turning, internal and external threading, roller burnishing, broaching, recessing, forming, cross drilling, and milling. In addition, we have a full compliment of machines, including Hardinge lathes, Bridgeport mills, centerless grinders, lathes, and drill presses, to perform secondary operations for specific requirements.
M.A.R.'s machines parts for heat detection units used in the aircraft industry and food processing equipment, as well as several other products.
A wide variety of materials can be screw machined, including all steels, hastelloy, brass, aluminum, and several other exotic materials in round, square, and hexagonal bar stock. Parts can also be treated with a variety of finishing operations, including anodizing, hard chrome plating, nickel plating, zinc plating, and more, depending on client requirements.
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Materials
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Metals (solid bar and tube):
Hasteloy
Kovar
Invar
Rodar
Nickel
Nickel 200
Copper
Brass (360, 330, 272, half hard)
Aluminum (6061-T6, 2011-T3, 2024-T4, 7075-T6)
Copper Alloys
Stainless Steel:
400 series: 410, 416, 416 H.T., 440C, 440A, 440C Vac. Melt., 17-4 PH, 15-5
300 series: 303, 303se, 304, 304L, 316, 321
Steel:
1018
C1018
1020
12L14
1215
4130
4140
41L40
8620
Nitride #3
Stress proof
Ledloy
Tool steel
Nitronic 60
Plastics:
Acetal
Copolymer
Delrin
Homopolymer
Delrin AF
PTFE
Delrin 150
Delrin 100
Acrylic
Ertalyte TX
Ertalyte PET-P
Peek
Ketron
PVDF
Kynar
Nylatron
Nylon
Peek
Polycarbonate
Polypropylene
PPS, Polyphylene Sulfide
PVC
PVDF
Techtron
Ceram P.
UHMW
Tivar
Mechanical Teflon
Virgin Teflon
Teflon
Torlon
Turcite A
Vespel
Vespel SP-1
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Production Runs
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Prototyping to high volume production runs
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Bar Stock
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1/32" to 3 1/4" round, hex and square bar stock
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Maximum Machining Diameter
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3 1/4"
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Tolerance
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0.001
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Finishing Services
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Alodine Plating
Anodizing
Black Oxide Plating
Chrome Plating
Gold Plating
Hard Chrome Plating
Micro Sand Blasting
Nickel Plating
Passivation
Polishing
Powder Coating
Teflon Plating
Tumble Deburring and Polishing
Zinc Plating
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Heat Treating
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Aluminum Heat Treating
Bright Annealing
Carbon Restoration
Carbonitriding
Carburizing
Cryogenic Treating
Gas Nitriding
Homogenizing
Hydrogen Heat Treating
Induction Hardening
Neutral Hardening
Nitrowear
Normalizing
Precipitation and Age Hardening
Sand or Glassbead Blasting
Solution Treating
Spheroidzing
Straightening
Stress Relieving
Tempering
Tool and Die Hardening
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Inspection Process
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ISO Compliant
Comply with Mil-1-45208A
Full time inspector to insure quality
Comparators, Microscopes, and other inspection measuring devices plus instruments
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Industries Served
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Agriculture
Communications
Computer
Electronics
Food Processing
Heating and Cooling
Marine
Medical
Ordinance
Recreational
Transportation
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