M.A.R.’s
Engineering
Company
Inc.
Screw Machine Products
Light Assembly Work

699 Montague Avenue
San Leandro, California 94577
PHONE: (510) 483-0541
FAX: (510) 483-1829


 
  

Email us at:

  

For Sales and Technical Information, contact: 
Manny Ambrosio 
manny@marseng.com
For questions about billing and invoices, contact: 
Jane McGee 
jane@marseng.com
For Questions about this site, contact: 
admin@marseng.com

    

OUR MISSION
To assist customers in engineering for best possible function and economics. 
And to supply products to our base customers on time with zero defects.
 
 

HISTORY OF
M.A.R.’s Engineering Company, Inc.
M.A.R.’s Engineering Co., Inc. was founded in 1964 by Manuel and Reine Ambrosio, thus the name M.A.R.’s. The company started with two #2 Brown and Sharpe and one #00 Brown and Sharpe automatic screw machines which were purchased at an auction. Three customers of the former owner of those machines contacted M.A.R.’s and asked if we would like to continue machining their products. We still have those same three customers thirty-four years later.

Foreseeing the future of M.A.R.’s combined with a two year waiting period for new machines, we were prompted to order two new 1 5/8" capacity Ultra-matic Brown & Sharpes in 1966.

In 1968 we had to move from our four year rental agreement property so we purchased our present 15,000 sq. ft. building and moved in.

M.A.R.’s continued building its customer base through word of mouth and referrals. We added second operation equipment such as mills, lathes, drill presses, tappers and grinders as requirements demanded.

Their son, Manny Blaine Ambrosio, was brought up learning the business and joined the company full time in 1980.

In order to increase the company’s capabilities and further serve our customer demands M.A.R.’s bought Automation Screw Products in 1982 which gave us multi spindle screw machine capability. Manny Blaine was fully trained on the multi spindles.


Manny Blaine has been managing the business since 1990. We presently have grown to nine 00 Brown and Sharpes (Square Base) with a capacity from 1/32" to 1/2" diameter, eight #2 Brown & Sharpes with a capacity from 1/32" to 1 5/8" diameter and eight multi spindle machines with a capacity from 1/32" to 3 1/4" diameter.

In our second operations department we have a full compliment of second operation and prototype machines including eight Hardinge lathes, ten different types of milling machines , three centerless grinders and other misc. lathe, drill, and tapping machines.

April of 1996 was the beginning of Manuel and Reine’s full time retirement when they sold the company to Manny Blaine Ambrosio and his wife, Christy.

1997 proved to be an exciting year because we acquired a CNC machining center. We are now looking to add CNC lathes and wire electrical discharge machines in the near future.

M.A.R.’s currently employs thirty-six full time employees in two side by side buildings consisting of 15,000 sq. ft. Among those employees is a full time inspector to insure quality workmanship

 
 
 
 
 
  

EQUIPMENT LIST
AUTOMATIC SCREW MACHINES
  •  17 Brown & Sharpe Single Spindle Screw Machines 

  • - Capacity from 1/32" through 1-5/8" 
    - Competitive in the 100 to 10,000 piece quantity range. 
     
  • 4 Acme-Gridley Multi-Spindle Screw Machines

  • - Capacity from 1/32" through 1/2". Competitive in the 5,000 piece 
       plus quantity range. 
     
  • 1 Acme-Gridley Multi-Spindle

  • - 9/16" Capacity 
     
  • 1 New Britain Multi-Spindle Screw Machine

  •  - Capacity from 1/8" through 1". Competitive in the 2,000 piece plus 
        quantity range. 
     
  • 2 Wickman Multi-Spindle Screw Machines

  • - Capacity from 1/8" through 3-1/4". 
HAND LATHE / TOOL ROOM LATHE
  • 1 Hardinge Tool room Lathe 

  •  
  • 5 Hardinge Turret Lathes 

  •  
  • 1 Brown & Sharpe Turret Lathe

  •  
  • 4 Hardinge High Speed Lathes 

  • (Three equipped with Bradmatic Pneumatic Slide) 
     
  • 1 McClean High Speed Automated Pneumatic Lathe 

  •  
  • 2 Engine Lathes

  •  
MILLS
  • 1 CNC Machining Center 
  • 2 Dyna Mini CNC Mills 
  • 2 Bridgeport Vertical Mills 
  • 2 Cincinnati Horizontal Mills 
  • 2 Cincinnati Rise & Fall Production Mills 

  •  
  • 1 Fox Hand Mill 
  • 1 Burgmaster Six Position Turret Drill 
  • Tool grinding department with various grinders 
MISCELLANEOUS

Surface Grinders, Centerless Grinders, Pedestal 

Grinders, Tumblers, Tapping Machines, Assorted Drill 

Presses, Band Saws, Cutoff Saw, Micro Sand Blasters & 

Micro Drill Presses. 

We also have a complete tool grinding room to make special cutting tools as jobs require. 

 

QUALITY CONTROL

We employ a full time inspector to insure quality. Complete inspection measuring devices and instruments are used including two types of comparitors and microscopes. 
(Mill specification Mil-1-45208A) 

M.A.R.’s Engineering has built its customer list to over one hundred active customers. 
Examples of the industries we presently serve include: 

Agriculture 
Communications 
Electronics 
Heating and Cooling 
Marine 
Medical 
Ordinance 
Recreational 
Transportation 
Computer 
Food Processing