Famous MC Rod Factories & Exporters

Natural MC nylon rod (ivory-white) is pure virgin PA6G, offering maximum impact strength, clean surface finish, and FDA suitability for food contact. Blue MC nylon contains dedicated organic color masterbatches or internal slip agents; it delivers identical or slightly higher tensile strength while offering easy visual optical detection on food processing lines and improved UV resistance for outdoor usage.

Like all polyamides, MC Nylon possesses hygroscopic amide linkages. In ambient saturation (50% RH), it absorbs roughly 2.0% - 2.5% moisture, causing a linear dimensional expansion of approximately 0.2% - 0.3%. For precision bushing fits, engineers must factor this expansion into internal bore machining clearances or opt for POM/Acetal if operational environments involve complete water submersion.

Our as-cast rods are delivered oversize to provide sufficient machining cleanup allowances. For diameters between Ø30mm and Ø100mm, the standard diameter tolerance is typically +0.5mm / +2.0mm. For large billets (> Ø200mm), tolerances range between +1.5mm / +4.5mm. Precision centerless ground or skimmed-turned rods with h9 or h10 tolerances are available on custom order.

Use high-speed steel (HSS) or sharp, uncoated carbide tools ground with positive rake angles (15°–25°) and generous relief angles (8°–12°). Cutting speeds should be high (250–500 m/min) paired with moderate feeds (0.15–0.4 mm/rev). Maintain sharp cutting edges and use compressed air or water-soluble coolants to prevent localized surface heat buildup, which can induce thermal expansion and out-of-round tolerances.

Rods are individually sleeve-wrapped in polyethylene barrier film or grouped in vacuum-sealed bundles with desiccants. Shipments are packed in heat-treated, fumigated ISPM-15 compliant solid plywood crates reinforced with internal steel strapping to eliminate sag or warping during extended sea transit through changing humidity zones.