DISTRIBUTOR-FIRST SUPPLY PARTNER · SINCE 1999 Live · Pneumatic Automation System
Polyurethane (PU) tubing is the highest-volume pneumatic tube in the SPC catalog — the default flexible polymer for general plant air, and the only right answer for constant-flex applications like robotics and tool drops. Two decisions get the right one on the truck: durometer matched to motion (soft 95A for flex, firm 98A for static), and OD matched to the fitting. PU's hard limits are chemistry, heat, and UV — when any of the three is in play, the spec belongs to PA12 nylon or FEP.
Tips and pointers on when PU is the right call — and when to spec something else. Scroll the strip →
Elastomer-block-copolymer structure recovers its bend radius without micro-cracking — millions of cycles at proper radius under pressure. The polymer for robot wrists, end-effectors, tool drops.
3–4× OD bend radius on soft 95A — the tightest of any common tubing polymer. Behind panels, around servos, through cable trays where nothing else will follow.
Soft polymer compresses cleanly into PTC collet seals — the most forgiving tubing for push-to-connect. Cut square, push home, pressure up — done.
Soft 95A for constant flex — robots, tool drops, balancer lines. Firm 98A for static and routed runs — general plant, FRL-to-valve, machine routes.
Hydrocarbons swell PU and stress-crack the polymer. → Re-spec to PA12 nylon any time the run sees cutting fluid, lube mist, or chemical contact.
PU softens below working strength as temperature climbs. → Re-spec to PA12 for elevated ambient, or FEP for steam-line proximity and hot-process zones.
Unstabilized PU embrittles within months of sunlight. → UV-stabilized PU for short outdoor; PA12 for indefinite outdoor or ozone-prone equipment rooms.
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.
PU lets a pneumatic circuit flex on every cycle without cracking — that's the default tubing for every motion application, plus the highest-volume general-plant line. Recurring revenue is in the rolls; the consultative win is matching durometer to motion profile.
Each industry below uses this product across the listed areas. Open an industry to see how it fits the rest of its system.
Food & Beverage Processing → 
Pharmaceutical, Medical Device & Laboratory → 
General Manufacturing → Also applies to Robotics and automation end-effector circuits · Pneumatic hand-tool drops and balancer lines · Soft PU or coiled PU is correct · 98A firm PU at 6mm or 1/4" OD in blue is the deepest-stock configuration. · Pneumatic automation cells, machine OEM builds, integration projects · Multi-circuit drops and cable-management applications · Pneumatic instrument panels and control cabinets · Vacuum-system and pickup-circuit plumbing · Black PU is the convention · Hand-tool blow-off, point-of-use air, operator-station drops
Every entry is a real product on this site — linked, not just named. Quote them on the same line item.
Quote in 500-ft and 1000-ft rolls with matched PTC fittings as a bundle. Once a plant standardizes on PU (Industry Leader tier) + matched fittings + circuit-color convention, they reorder by part number on a predictable cadence — the part-number reorder is the customer who isn't shopping.
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.
