M.A.R.'s Engineering

San Leandro screw machine products maker with 35 single spindle screw machines, plus CNC turning, milling, wire EDM and centerless grinding.

Capabilities

• Single spindle screw machining
• Multi-spindle screw machining
• CNC turning
• CNC milling
• Wire EDM
• Centerless grinding

Materials

Tool steel, Stainless steel.

Quality & certifications

ISO 9001:2015, AS9100 (as stated on site).

Request a quote

To request a quote from this shop, use the Request a Quote form. Tell us the part, material, quantity and deadline, and we will pass your request to the shop.

Screw Machine Products in San Leandro from M.A.R.’s Engineering

Small round parts such as pins, bushings, fittings and fasteners are made in huge numbers. The classic way to make them quickly is a screw machine. M.A.R.’s Engineering is a San Leandro screw machine products maker, listed here with 35 single spindle screw machines, plus single spindle and multi-spindle screw machining, CNC turning, CNC milling, wire EDM and centerless grinding, in tool steel and stainless steel. This page explains what screw machine work is and how to prepare a request for screw machine parts in San Leandro.

What a screw machine is

A screw machine is a type of lathe made for repeating small round parts fast. Bar stock feeds into the machine, and tools cut the shape in a set sequence. The part is cut off at the end, and the machine starts the next one. Older cam-driven machines and newer CNC versions both exist. They are built for volume, so setup takes effort and the cost per part falls as the quantity rises.

Single spindle and multi-spindle

A single spindle machine has one spinning bar and does one part at a time. A multi-spindle machine has several bars in a rotating head, and each station does a different cut at the same time, so a finished part comes off every cycle. Multi-spindle machines are used for very large volumes. The listing names both, so you can describe your volume and ask which fits.

CNC turning and milling

CNC turning handles parts that need more flexibility, shorter runs or more complex shapes. CNC milling adds features such as flats and pockets. A part may start on a screw machine and finish on a mill.

Wire EDM

Wire EDM uses a thin wire and electrical sparks to cut conductive metals. It is useful for narrow slots and sharp corners. The listing includes it, so a project with an unusual shape can be discussed.

Centerless grinding

Centerless grinding finishes round parts by passing them between a grinding wheel and a regulating wheel, with no center holding them. It produces very consistent diameters and smooth surfaces on pins and shafts. If your part needs a ground diameter, mark it on the drawing.

Materials

The listing names tool steel and stainless steel. Tool steel is hard and wear resistant. Stainless steel resists corrosion. Machinability varies by grade, so give the exact grade you need.

Quality listing

The listing shows ISO 9001:2015 and AS9100, as stated on the shop’s site. Ask what records and traceability come with an order if your product needs them.

When screw machining makes sense

• Small round parts
• Medium to very high quantities
• Repeat orders on a schedule
• Parts that need turned features, threads and grooves

For one or two pieces, a CNC lathe is often cheaper.

What to include in an RFQ

• Drawing with revision
• Material and grade
• Annual usage and size of each release
• Critical tolerances and finish
• Packaging and labeling
• Delivery schedule

A scale of 35 machines

The listing mentions 35 single spindle machines. A large fleet can help spread work across machines, though you should still ask about lead times for your own part.

Setup costs and order size

Screw machine setups take real time, so the price per part depends heavily on order size. Larger orders spread the setup across more parts. If your annual use is high, consider asking for a quote on a yearly quantity with scheduled releases, which can lower the unit price. Ask about minimum order quantities, and whether tooling such as cams or special cutters is a one-time charge. Being clear about volume saves time for both sides.

Ready to ask for pricing? Request a Quote through Machining Marketplace and we will pass your request to M.A.R.’s Engineering.

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