Industries · HVAC and refrigeration

Glass-filled nylon fan blades and functional parts for HVAC and refrigeration

Fan blades, impellers, guards, drain pans, control boxes and room-air-conditioner enclosures for HVAC, refrigeration, compressor and pump OEMs, moulded in Peenya, Bengaluru, under ISO 9001:2015. Send the drawing; Madhusudhan, our Head of Production, replies with DFM feedback within 48 hours on working days.

What we mould, on which machines, in which materials

Two fan-blade families in 15% glass-filled nylon run here in volume for a refrigeration manufacturer, each shipped with its lock pin. Around them we mould the working parts of an air conditioner, a refrigerator, a compressor or a pump: the parts the buyer never sees and the service engineer always does.

• In production: two axial fan-blade families in 15% glass-filled nylon; ABS enclosures for room-air-conditioner equipment
• Quoted on your drawing: fan blades and impellers in 15% or 30% glass-filled nylon 6 or 66, or in 20% glass-filled polypropylene
• Fan guards, cowls and diffusers; drain pans; control boxes; inlet-filter housings
• Pump impellers with a brass bush, insert-moulded on the vertical machine

Nine injection moulding machines, eight horizontal from 60 to 1300 tonnes clamp force and one vertical machine for insert moulding, all with servo drives and SCADA/HMI monitoring, for parts from 10 g to 5.2 kg. Full list: capabilities page. Thermoplastics only, and no air-conditioner front panels or cooler bodies.

A fan blade is a rotating part, so the job is repeatability. Unbalanced fill, or glass fibres that line up differently from one blade to the next, puts mass where the drawing does not, and off-centre mass becomes vibration, noise and bearing wear. So the mould-flow review before steel is cut looks at gate position and fibre orientation, and process parameters are logged at the machine through SCADA/HMI.

Materials follow the duty: nylon 6 and 66, 15% or 30% glass-filled, where a blade or impeller must stay stiff at temperature; 20% glass-filled polypropylene where chemical resistance and cost lead; ABS for enclosures. Nylon takes up moisture from the air and a wet shot is a weak shot, so compounds are dried and processed to grade.

Ten parts you buy in metal today

Send the drawings of up to ten parts you buy today as pressings, die-castings or machined brass. An engineer replies within 48 hours on working days: which can move to glass-filled nylon or polypropylene as drawn, which need a rib, a boss or a wall change first, which need a metal insert, and which should stay in metal. The review of up to ten parts is free and carries no obligation.

As of 20 October 2026, the PLI White Goods scheme expects domestic value addition in air conditioners to rise from 20 to 25% today to 75 to 80%, and its round 4 selection of 23 January 2026 lists plastic moulding components among the parts to be made in India. If you are a beneficiary, say so in the enquiry.

Certificate and documents we can send today

ISO 9001:2015, certificate NVT 147210, issued by NVT Quality Certification International LLP, Bengaluru, valid to 14 March 2027, for the design, manufacture, supply and sales of plastic injection moulded components. The PDF is in the documents bar above.

Incoming, in-process and final inspection are documented per part, with batch traceability where required. Certificates of conformance, inspection reports, material certificates, and REACH Article 33 and RoHS declarations for the grades we run come with the shipment or on request. Balance and CMM data are not published; if your blade carries a balance limit, put it on the drawing.

Terms, Incoterms and lead time

In India we invoice in rupees with GST credit, on terms of 45 days or less for new accounts. We quote FCA Chennai or FCA Nhava Sheva by default, DAP where costed, never DDP into the United States or the United Kingdom. First export orders run on letter of credit or advance payment; open account follows once an ECGC buyer limit is in place.

Every new tool is funded by you or transferred in, stays your property and is held here under bailment terms. Design, CAE mould-flow and managed tooling run through partner toolrooms under Kruger’s design authority. The published cost bands are on the tooling cost guide; a mould you already own comes in through the tool transfer process. Lead time is stated in each quotation once the tool and the resin are fixed.

Who trusts Kruger, by sector

By sector, not by name: glass-filled polypropylene air-filter housings for a global filtration OEM since 2010; insert-moulded connector caps for a global connector manufacturer; every container and cover for the batteries of our sister company, Microtex Energy Private Limited. Our first United States order is in production. Part of the Microtex Group, founded in 1969.

How fast an engineer replies

Madhusudhan, our Head of Production, replies with DFM feedback within 48 hours on working days, not a bot. kruger@microtex.com is read twice daily. Phone and WhatsApp: +91 96864 48899. Send the drawing as STEP or PDF, the annual quantity, the material or metal it is made from today, the operating temperature and speed, your country and your Incoterm preference.

In ‘What do you need?’ choose New moulded part, new tool required. Files travel by email only and are not stored on this website; your enquiry details are kept in our enquiry log so that we can follow up.