Packing tea leaf and dust starts with measuring bulk behaviour on your floor, not copying another factory’s HMI recipe. For Tea, plan around 0.25–0.45 g/ml leaf (dust denser) bulk density and aroma volatiles as the primary materials variables. Recommended metering is cup for leaf / auger for dust grades — this is not a powder-auger application. YugMach publishes configuration prices from Mathura so buyers get price transparency before GST; final figures still follow pouch size, film, and options. On tea lines, seal development usually begins near 140–175°C with dwell in the 0.4–1.0 s band, then moves after peel tests on your laminate lot. Gas or barrier target context is aroma + light barrier. Typical films include Metallised tea laminate, Alu-foil laminate, PET/PE. Pouch bands commonly cover 50g–100g, 250g–500g, 1kg. Planning throughput sits near 1,200–3,000 when product, film, and changeovers cooperate. Critical failure modes unique to tea leaf and dust: leaf vs dust flow; aroma loss; 6–8% moisture targets; foil sealing; avoid pulverising leaf. Design SOPs and spare kits around those five, not around generic ‘packing machine maintenance’ checklists. Keep free-fall near 350 mm or lower when fracture or dust generation is a risk for this SKU family. Where gas flushing applies to tea leaf and dust, a practical starting purge is about 0.3 L per cycle, then trim using residual oxygen or sensory shelf tests. Do not chase brochure speeds while residual oxygen drifts above the claim window — rancid returns cost more than a slower jaw cycle. Weight control economics for tea: about 2 g average giveaway at 2,000 packs/hour wastes 4 kg/hour of product. Multiply by your factory cost per kilogram to size the payback for better tooling, more heads, or closed-loop checkweighing. Calibrate weekly with certified test weights and after any collision on the filler frame. Mechanical envelope: expect on the order of 3.8 kW class connected load depending on servos and heaters, and roughly 6 bar clean dry air if actuation is pneumatic. Film path width planning around 145 mm face/web context is a common starting point for mid retail SKUs, but collar selection must match the actual formed cross-section. Wrong collars score film, wander longitudinal seals, and create scrap that looks like a temperature problem. Tea leaf, fannings, and dust do not share flow curves — leaf often uses cups; dust may need augers. Aroma volatiles and light sensitivity push metallised or foil laminates for quality retention. Avoid pulverising leaf in aggressive screws; broken leaf changes infusion and customer perception. In-pack moisture near 6–8% (grade-dependent) should be verified on sealed samples, not only on the sorting floor. Foil seal windows near 140–175 °C need lot-by-lot peel tests; under-seals waste aroma into the carton. Housekeeping for tea leaf and dust must match chemistry: wipe intervals, extractor filter changes, and elastomer replacement differ from a dry rice demo line. Never hose electrical cabinets. Dry contact parts fully after wet cleaning before restart. Document screw RPM or weigher combination limits, seal temperature, and flush settings on a laminated card at the machine for each tea SKU. Factory acceptance should include at least three steady hours on the hardest tea SKU with agreed scrap and weight or count tolerances. Record film lot, ambient °C, and RH — monsoon air in North India changes powder flow and snack oil feel. Train two operators and one fitter before sign-off; demand drawings, pneumatic diagrams, and password policy with the machine. Spare parts with lead time risk for tea lines include sealing jaws or Teflon, forming collars for each width, and filler-specific wear parts (auger flights, cups, weigher buckets, linear pans, wrap belts, or count sensors as applicable). Buying the cheapest film that ‘almost seals’ at 140–175°C usually raises scrap more than the reel savings. Commercial comparison: use published prices for price transparency, then insist on trials with your tea leaf and dust and your film. Numbers that decide the purchase are density, aroma volatiles, peel strength, giveaway or reject rate, and sustained packs per minute — not marketing adjectives. GST is extra on published tags; nitrogen, extra heads, and special MOC change the final configuration cost. For tea, revisit film COF if packs slip on inclined outfeeds; a 0.05 COF shift from a new reel lot can raise fall-over scrap without any machine fault. Operators packing tea leaf and dust should know the abort sequence for film break and hopper empty — untrained clears are a top source of bent jaws and cut fingers. Keep a scrap Pareto for tea with categories for seal, weight/count, and print; fund fixes for the tallest bar first. When ambient RH jumps 15–20 points, re-check the first 50 packs of tea leaf and dust before releasing the shift’s production. Align purchasing of film and spare collars for tea so a width change does not strand the line waiting for tooling. For tea, revisit film COF if packs slip on inclined outfeeds; a 0.05 COF shift from a new reel lot can raise fall-over scrap without any machine fault. Tea dust explosive atmospheres are a real design concern in enclosed rooms — follow dust hygiene and grounding practices. Leaf grades with high tip content bridge differently; cups may need agitation. Garden-marked teas with seasonal density shifts need seasonal RPM or cup volume reviews after each flush season.