DISTRIBUTOR-FIRST SUPPLY PARTNER · SINCE 1999 Live · Pneumatic Automation System
A composite push-to-connect (PTC) fitting is the workhorse pneumatic tube connector — a technopolymer or acetal body that joins tube-to-tube or tube-to-thread by pushing the tube in until it bottoms. It is the highest-volume fitting in any pneumatic plant: machine air drops, valve-to-cylinder runs, plant-air branches, MRO replacement. Sized by tube OD (outside diameter) in metric (4-16 mm) or inch (1/4"-1/2"), with thread ends in NPT (US tapered), BSPT (British tapered), BSPP (British parallel), or Metric. Installs at every cylinder port, valve port, FRL outlet, and tube junction. A complete catalog spans hundreds of SKUs once configuration, tube size, and thread type are crossed — which is why distributor stock depth is the structural play on this line.
Tips and pointers on when composite PTC is the right call — and when to spec something else. Scroll the strip →
Highest-volume pneumatic fitting in any plant — every cylinder port, every valve outlet, every machine drop. A 25-50 HP plant runs hundreds of fittings; one packaging machine, 30-80.
The premium-line spec detail: a stainless-steel grab-ring (not plastic collet) bites the tube OD and resists creep under vibration for years. Generic-collet imports walk the tube out in 12-18 months.
NPT, BSPT, BSPP, Metric × straight, elbow, tee, Y, cross, reducer, bulkhead, banjo. Industry Leader tier''s deep US stock means a 1/4" elbow on the truck Tuesday — the structural play on this line.
NBR (nitrile) standard — general air. FKM for oil-mist or elevated temperature. EPDM for hot water or caustic. Wrong elastomer fails in months; right elastomer runs years.
Composite body cracks at the thread root past envelope; O-ring seats deform. → Step up to metallic brass PTC for 230 PSI / 200°F industrial duty.
Oil softens technopolymer until the fitting blows the tube off. → Step up to brass PTC for CNC coolant-mist zones, compressor-oil aerosol, hot-side compressor rooms.
Composite is not NSF or stainless-certified; audit flags it on first walk-through. → Step over to NSF food-grade PTC for food-adjacent zones, stainless PTC for wet-contact and washdown.
From the machine spec sheet → to the part number. Answer what you know — leave the rest blank — and send.
Most distributors sell one brand per product type. SPC's 60-brand portfolio means every Product Type page surfaces three real options matched to how your customer is buying today. Pick the tier; the quote desk handles the cross-reference.
You don't win composite PTC on per-piece price. You win on stock depth, lead time, the matched bundle, and the grab-ring inside the fitting.
Each industry below uses this product across the listed areas. Open an industry to see how it fits the rest of its system.
Material Handling & Conveyors → 
General Manufacturing → Also applies to Machine actuation and pneumatic cylinder plumbing · Robot end-of-arm tooling and integrated automation · MRO replacement and service-call install · Pneumatic test stands, calibration rigs, engineering benches · OEM machine-build connection layer (non-engineered-system OEMs) · Vacuum-application pneumatic plumbing
Every entry is a real product on this site — linked, not just named. Quote them on the same line item.
Stock the 8-15 fast-mover SKUs (1/4" and 3/8" straight, elbow, branch tee in NPT; 6mm and 8mm metric equivalents) in 25- or 50-count packs for MRO restock cadence. A plant doing 50-100 fittings per quarter consumes packs faster than line-item ordering — pack pricing runs 5-10% below per-piece quoting.
Send us the application — a specialist routes you to the correct tier with a configured part. Lead-times and pricing returned within one business day.
—. We reply within one business day with pricing, lead-time, and configured parts.