§ 00ServicesPractice document · Edition 01

Four lines.
One firm.

Polynexus delivers four engineering practices: capital equipment, spare parts programs, consumables and materials, and plant audits. Each line is engineered separately, scoped on paper, and priced without surprise.

§ 01

Practice line

Capital Equipment Engineering.

From spec to start-up, we manage the technical lifecycle of an Asian-sourced equipment buy.

We treat capital equipment as a system, not a transaction. Our team begins each engagement by deconstructing the client's process specification — line speed, gauge, resin profile, throughput targets, integration constraints — and mapping it against the qualified Asian OEM landscape.

We then run a structured down-selection: 3–5 vendors, head-to-head technical scoring, FOB and tariff-loaded landed cost comparison, and reference customer calls. The shortlist becomes the basis of a Factory Acceptance Test plan executed on-site by Polynexus engineers, not the OEM's own team.

Commissioning support is part of the scope. We continue through site installation, ramp-up, and the first 90 days of production — closing the loop between Asian build quality and US production reality.

§ 02

Practice line

Spare Parts Programs.

Recurring multi-vendor parts sourcing for screws, barrels, screen packs, gearboxes, and other wear items.

Western OEM spare parts pricing carries a 20–40% distributor markup that has nothing to do with manufacturing cost. Our spare parts program replaces that overhead with a structured Asian sourcing matrix — one Polynexus engineer, three to four qualified Chinese fabricators per part category, ongoing PO management.

Each part category begins with a benchmarking pass: current US spend, current vendor pricing, current lead time, current quality footprint. We run a 3–4 vendor bake-off with a small pilot order, validate at the plant, and only then scale. Categories that don't survive validation get returned to the existing US supply chain — we never push parts that aren't production-ready.

Programs are priced as a low monthly retainer plus a transparent markup on goods. Clients can model our economics down to the last screw.

§ 03

Practice line

Consumables & Materials.

Lab-validated, lot-traceable supply of mesh, additives, masterbatch, and specialty resins.

Consumables are where the lazy sourcing firm makes a margin and the careful one earns trust. Every lot we ship is COA-documented, third-party-tested where the spec demands it, and lot-coded so a quality issue at month nine can be traced to the original mill order.

Our materials engineers work upstream of procurement — qualifying additive packages by application, validating masterbatch dispersion, and benchmarking specialty resin candidates against the client's Western incumbent. We do not list a material in a quote we haven't run on a representative line.

For consumables, the quiet, recurring win is the win. We optimize for zero quality incidents and predictable lead times before we optimize for headline savings.

§ 04

Practice line

Plant Audits & Supplier Development.

Independent on-site engineering audits — for new vendor qualification, ongoing supplier development, or pre-shipment inspection.

Plant audits are our front door. Most clients begin with a single fixed-scope audit on a vendor they've already identified or one we recommend. The deliverable is a structured engineering report — capacity, equipment list, quality systems, environmental compliance, financial stability indicators — that gives the client a basis to commit, walk away, or negotiate.

Supplier development engagements extend the audit into a 6–12 month uplift program: closing capability gaps, installing measurement systems, qualifying additional product lines. We work as the client's representative inside the vendor's plant — not the vendor's broker.

Pre-shipment inspection is the simplest version of the same service: we walk the equipment or the lot before the container is sealed and certify it against the purchase order spec. PSI catches problems while they're still on Chinese soil and still the vendor's responsibility.

Engagement

Pick a line.
We'll start there.