Offers to Sell

liquid crystal for PDLC Switchable film CF756 1639358-17-0 Established in 2007, Qingdao QY Liquid Crystal Co., Ltd is a leading manufacturer specializing in high-quality nematic liquid crystals, primarily used in PDLC smart film and high grade of LC display. With over 18 years of nematic liquid crystals production expertise. Our LCs are widely exported to Europe, the United States, South Korea, and other global markets. The capable of our producing approximately 5000 kilograms per month. We signed the Exclusive Agency Agreement with our South Korean customer from 2011

Minimum Order: 20 square metres

If you’ve spent time around timing covers, you already know the pattern: a camshaft seal that has hardened or lost preload will first leave a film of oil near the cover, then a faint burnt‑oil smell, and—on bad days—wisps of smoke when oil reaches hot exhaust parts. Oil leaks and smoke from the engine bay are among the most common signs of a failing camshaft seal, and this issue is especially relevant to belt‑driven OHC layouts. Typical root causes include dried rubber and abnormally high oil pressure (e.g., a stuck relief valve). Camshaft seal uses a metal/rubber case for a press fit in the housing, a garter spring to maintain lip load, and a primary sealing lip with asymmetric angles so the contact line develops a pressure distribution that favors lubricant return. Some designs add a dust/exclusion lip; when used, keep the inter‑lip space lubricated to control heat. Functionally, this location does not see full hydraulic system pressure; it sees splash oil and crankcase pulses. If the crankcase ventilation is restricted or the head gallery dynamics are off, lip loading and differential pressure change and leaks follow—exactly the scenario described in practical notes on “too much oil pressure.” Target surface finish around Ra 0.2–0.8 µm; avoid spiral lead and eccentricity. Housing tolerances should support a secure interference without distorting the case. Dual‑lip solutions improve dirt exclusion, but manage heat with lubricant and proper venting. 2) Materials and operating window · NBR (nitrile): good oil resistance and value for money—bread‑and‑butter for many passenger cars. · FKM (fluoroelastomer): superior heat and chemical resistance—preferred for hot engines, extended service intervals, and biofuel blends. · HNBR / AEM / ACM: configurable trade‑offs among heat/oil/ozone resistance for specific engine families. · PTFE‑based lips: low friction, good for dry starts and high‑speed platforms. Hardness typically sits around 70–85 Shore A to balance sealing force and wear. Temperature capability depends on compound (a common envelope is ‑40 to +250 °C). Pressure at the cam end is usually low; what matters more is pulsation and return‑oil behavior, not static pressure rating. Again, that matches public explanations that drying/hardening and oil‑pressure irregularities are primary triggers. Oil trace at the timing cover or spots under the car; Smell or visible smoke in the engine bay when oil reaches hot exhaust pieces; Contaminated belt leading to slip/noise and timing scatter. A widely used practice is to inspect/replace the camshaft seal when the timing belt/chain is serviced—you save duplicate labor and avoid a comeback caused by a marginal old seal. Focus on platforms where the cam nose exits the cover: passenger cars and light trucks, heavy‑duty trucks and construction equipment engines, gensets, marine diesels, and certain rail/industrial engines. Those are the domains where distributors move volume and service shops need quick turnaround. 5) The camshaft seal series Product scope · Standard spring‑loaded elastomer lips (NBR/FKM/HNBR etc.); · Low‑friction PTFE composites for high speed or hot duty; · Single‑lip / dual‑lip with dust exclusion; · Coated outer cases to compensate minor bore imperfections. 6) FAQ Q1 – Which compounds and sizes should I stock? Focus on NBR/FKM in the popular OE diameters for mainstream Asian/European/American engines. Keep HNBR/PTFE for hot‑running or high‑duty fleets. Q2 – Lead time and MOQ? Standard items ship the same day. For specials, MOQ depends on tooling and test plan; expedited pilot lots are available for urgent programs. Q3 – Can you help with failure analysis? Yes. Send photos of the contact band and shaft wear pattern; we’ll assess lead marks, eccentricity, or lip damage and propose compounds/geometry adjustments. Q4 – Packaging and traceability? Each batch carries a barcode and material lot number, with outbound test records for audits and after‑sales traceability. Q5 – Service timing advice? Align seal replacement with timing belt/chain service to avoid duplicate labor and reduce comeback risk. Source notes for the above symptoms/causes: consumer‑facing but technically reviewed write‑ups documenting oil leak & engine‑bay smoke, “belt‑engine layouts,” and failure drivers like dried seals or excess oil pressure. They match field observations and give owners and shops a common language for decisions.

Minimum Order: 500

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Certified hazardous material manager

Minimum Order: 12 metric tons

Microcrystalline Wax is a refined synthetic wax derived from the heavy distillates of petroleum fractionation. Compared to common paraffin wax, it has a finer and denser crystal structure (hence the name "microcrystalline"), which gives it a unique set of physical properties: High flexibility and ductility High melting point (with a broad range, typically between 60–95°C) Strong adhesion Increased hardness while preventing brittleness Better opacity (enhances wax opacity) Improved oil-binding capacity, reducing the seeping of essential oils/fragrances Role of Microcrystalline Wax in Container Candle Making: Increases hardness and enhances structure Improves surface smoothness and prevents frosting Enhances thermal properties (melting and softening points) Boosts fragrance throw Improves adhesion and prevents shrinkage

Coaxial Isolator UIYCI80140B, Covering 60~200MHz frequency range, Supporting a maximum power handling of 500W, With an isolation level up to 23dB, Stable performance, exceptional quality, easily tackling various communication challenges. Customizable on demand. Applications: Radar System Telecom Infrastructure Microwave Radio Systems Communication Systems Wireless Radio Systems R&D labs Public Address System Radio Transmitter Biomedical Instrumentation 4G LTE 5G NR Mobile Communciations

Minimum Order: 1 bags

YAMAHA SMT Ss 8mm Feeder Khj-Mc100-009

Item Value Condition New Weight (KG) 1500 Showroom Location United States, India Video outgoing-inspection Provided Machinery Test Report Provided Marketing Type New Product 2023 Warranty of core components 1 Year Core Components PLC, Engine, Bearing, Gearbox, Motor, Pressure vessel, Gear, Pump Place of Origin China Guangdong Brand Name Morel Model Number KTU-450 Warranty 6 Months Product name Wave Soldering Oven Usage SMD LED SMT Model KTU-450 Warranty 12 months Application SMT PCB Assembly Production Line Condition Original Used

Minimum Order: 1 bags

SMT assembly line inspection station 800mm PCB conveyor BC-080M-N 1. Modular design, according to customer demand matching removable 2. Sturdy structural design improves the stability of the equipment. 3. smooth parallel ball screw adjustment method 4. Variable speed control function 5. With circuit board detection mode (board board function) 6. The use of special transmission rail aluminum slot design to prevent the card board 7. The bottom of the increase design, not easy to shift 8. Can be customized according to customer requirements machine length 9. Compatible SMEMA interface SMT Conveyor short-length SMEMA-compatible transfer conveyors are used for equipment linking, visual inspection, manual assembly, and PCB buffering functions. Their advantage is the short length, which allows them to be placed anywhere when you have space limitations. the front rail is stationary while rear rail adjusts to desired width with a hand crank. When the conveyor is idled, boards can be removed and inspected on the work ledge adjacent to the front rail, which will come covered with a green ESD surface. Made by aluminum and steel, it gives a professional look. We also have under demand, better-looking versions made with aluminum finishings, for a higher aestetic impression. Specifications Description This equipment is used as an operator detection workbench in the SMD production line or in the PCB board assembly line Board size (mm) 50 x 50 ~ 445 x 350 Working height (mm) 900 ± 20 (std) Transmission speed 1-12 meters per minute or as your specified Power Supply AC220V/50/60HZ Machine dimensions 800(L) x 665(W)x 920(H) MachineWeight (KG) 75 Power Maximum 100 volts Belt Type 4mm flat belt Transport Direction Left to right or as your specified Light With lights and no lights, optional The commonly lengths 0.8M Thanks zoey@jinchensmt.com

Minimum Order: 1 bags

Fixing Rail: Front Fixed Components height : 5mm Placement speed: 16,000CPH (IPC 9850) Feeder inputs : Max. 80 on 8mm T/F6 Power supply : 200 to 415 VAC, 3-phase Apparent power : 3kVA Operating air pressure : 0.5±0.05Mpa Air consumption : 345L/min (Opt.:Vacuum Pump 50L/min) One multi-nozzle laser head (6 nozzles) Machine dimensions : 1,400×1,393×1,455mm Mass (approximately) : 1,530kg Download Details Feature : The KE series meets the needs of a wide variety of applications with the highest performance. High-speed, high-accuracy component centering using unique laser technology and powerful vision processing. The mounter supports a wide variety of component types due to its highly general versatility, and it can place a subminiature component on a board at high speed and highly precisely. High-precision image recognition/placement of an IC component or an irregularly-shaped component is also possible: this allows you to establish a flexible production line. (Image recognition of a component is an optional function.) Thanks zoey@jinchensmt.co , m

Minimum Order: 1 bags

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