Medical & Laboratory Instruments

Typical machined tolerance is ±0.005 in, ±0.001 in on critical turned diameters, and down to ±0.0002 in on wire-EDM and other finished features; ground features are quoted to ±0.0001 in. Milled features are quoted from the print, so call out the dimensions that matter (seals, mating faces, bores). Every part inspected against your print before it ships.

Yes. PEEK, Delrin (acetal) and PTFE are quoted, alongside stainless, aluminum, and titanium. Wikipedia credits PEEK with chemical resistance retained to high temperatures, and lists liquid chromatography columns among its uses (source 1). PTFE is non-reactive and lines containers in laboratories, but it is subject to creep (source 2). Acetal suits precision parts that need stiffness and dimensional stability, and it is sensitive to acid and chlorine (source 3). Other alloys and plastics quoted on request. Name the grade on the print. PEEK and Delrin each have a page.

Yes. Stainless (303, 304, 316 and 17-4 PH) and titanium are quoted from the print, with the grade and condition named on it. Wikipedia describes 316 as a molybdenum-alloyed stainless with greater resistance to pitting corrosion than most grades without molybdenum (source 4), and names corrosion resistance and tensile-strength-to-density ratio as titanium’s two most useful properties (source 5). A finish called out on the print is quoted with the part. Passivation is one. See 316 stainless and titanium for the grades.

No. A single prototype manifold, a small validation batch, or a recurring instrument run: all get quoted the same way. Ask for more than one quantity, such as 1, 25 and 100, and the quote shows each. No-minimum orders has the detail.

Any file type is accepted; a STEP or STP model plus a PDF drawing that calls out the critical dimensions and surface finishes is ideal. Flag the features that matter (seals, mating faces, fluid paths) and the quote follows them. A fully dimensioned 2D PDF is quoted without a CAD line. A sketch, photos or a new sample part can start a quote, and the CAD work is quoted as its own line. What to upload for a quote covers the files in order.

Quotes come back in 24-48 hours. Rush: 1-2 weeks. Standard: 4-6 weeks (typical). Extended: 6-8 weeks, for jobs that aren't time-sensitive. Rush is quoted at a premium. Rush 1-2 weeks applies to machined parts with no secondary operations. Heat treat, grinding, EDM and finishing add time, and the quote gives the real date. Lead time starts at order approval. Put your need date in the part description and the quote answers it. Rush CNC parts covers what makes a part rushable.

No C of C or material certifications ship with parts by default. If your PO needs them, say so before the quote. Inspection reports on critical dimensions aren’t included by default. If you need one, ask when you place the order.