Others & Excess Inventory

Methyl methacrylate (MMA), also known as isobutyrate methyl ester, is an organic compound with the chemical formula C5H8O2. It is a colorless liquid, slightly soluble in water, and soluble in most organic solvents such as ethanol. It is mainly used as a monomer for organic glass and is also used in the manufacturing of other resins, plastics, coatings, adhesives, lubricants, wetting agents for wood and cork, and paper polishing agents. Production  Process There are three prevailing processes for MMA or methyl methacrylate production, C-2 Process starting from ethylene, methanol and formaldehyde, C-3 Process (also called ACH Process) which uses the byproduct of HCN from acrylonitrile production as the feedstock, and C-4 process which uses isobutene or tertiary butanol as the feedstock. SL Tec can help build MMA plant based on C-4 Process, consisting of three working units, i.e. oxidation unit, distillation unit and esterification unit.

Epoxy resin refers to an organic polymer compound containing two or more epoxy groups in its molecule. Its molecular structure is characterized by the presence of active epoxy groups in the molecular chain. The epoxy groups can be located at the end, in the middle of the molecular chain, or in a cyclic structure. Synthesis of phenolic epoxy resin: Phenolic resin is synthesized by the polycondensation of phenol or cresol with formaldehyde under acidic or alkaline conditions. Then, it reacts with epichlorohydrin under alkaline conditions to introduce epoxy groups, thereby obtaining phenolic epoxy resin.

The Nitrocellulose manufacturing process technology is based on the technology that imported from the Soviet Union in China's First Five-year Plan. It has formed a completely independent, mature and complete technical system after more than 50 years' continuous improvement and innovation. It is the most advanced industrial technology which uses cotton as raw materials in Nitrocellulose formula. Features of Nitrocellulose Plant High product quality High product quantity Low consumption of materials and energy Advanced level in the global industry SL Tec has rich experience in offering high efficient Nitrocellulose manufacturing process or updating Nitrocellulose formula for Nitrocellulose plant construction. Welcome to consult us for more details of the Nitrocellulose production process.

Acetate as green solvents are widely used in all fields. Our company adopts continuous esterification process to synthesize the corresponding acetate. Ethyl acetate and propyl acetate can be efficiently converted. The flexible production of different acetate products is realized in the same set according to the market situation. In this way, investment is reduced and anti market risk capability is increased. Acetate series technology Acetates include ethyl acetate, acetaldehyde reduction, butyl acetate, amyl acetate and etc. As environmentally friendly solvent, they are widely used in areas such as solvents, monomers, plasticizer, surfactants and polymers. The following introduction is the production process of various acetate:

There are two prevailing processes for sec-butyl acetate (SBA) production, i.e. iso-butanol-acetic acid esterification process and n-butene -- acetic acid addition process. Due to its much lower production cost, new SBA plants usually use the Addition Process, which is the very technology SL TECH provides. It consists of four units, feedstock purification unit, esterification unit, product separation unit and acetic acid recovery unit. Compared to the Esterification Process, the Addition Process for SBA production has advantages such as shorter process flow, less equipment and lower production cost (50-60% of Esterification Process); lower energy consumption (only 5% of Esterification Process); easy operation, lower maintenance cost and lower operation cost; harmless and poisonless solid acid catalyst, less pollution, less equipment corrosion.

For palletizing robot gripper cylinders, O‑rings must withstand frequent reciprocating motion, resist wear, tolerate oil exposure, and maintain reliable sealing under high‑frequency operation. Selecting the right material is essential for ensuring long‑term performance and system stability. Below are several commonly used rubber materials and their suitability for this type of application. Hydrogenated Nitrile Rubber (HNBR) HNBR is an upgraded version of standard nitrile rubber. It offers enhanced resistance to oil, heat, and oxidation. Its excellent wear resistance makes it particularly suitable for applications involving continuous reciprocating motion, especially in high‑temperature or chemically aggressive environments. Typical Applications High‑temperature, oil‑rich, and chemically corrosive environments. Advantages Strong wear resistance Excellent heat and chemical resistance Disadvantages Higher cost compared with standard NBR HNBR is ideal for applications requiring both high sealing performance and durability, especially where frequent motion and elevated temperatures are present. Polyurethane (PU) PU is known for its outstanding wear resistance and elasticity, making it a strong candidate for high‑frequency reciprocating applications. It can withstand prolonged friction and impact, and its hardness can be adjusted to meet the needs of pneumatic and hydraulic systems. Typical Applications Low‑ to medium‑temperature environments, particularly where abrasion is a major concern. Advantages Exceptional wear resistance Good elasticity Suitable for high‑frequency motion Disadvantages Poor high‑temperature resistance and prone to aging under heat If your cylinder experiences significant wear during frequent motion, polyurethane is a highly suitable choice. Nitrile Rubber (NBR) NBR is one of the most widely used O‑ring materials. It provides good oil resistance and moderate wear resistance, making it suitable for most hydraulic and pneumatic systems involving lubricants, oils, and fuels. Typical Applications General operating temperatures from −40°C to 125°C, especially in oil‑based environments. Advantages Excellent cost‑performance ratio Good oil and wear resistance Disadvantages Limited high‑temperature capability For most non‑extreme working conditions, NBR offers a practical and economical solution, especially for oil‑based sealing applications. Fluorocarbon Rubber (FKM) Compared with NBR, FKM provides superior heat and chemical resistance. It is widely used in high‑temperature and corrosive environments where sealing reliability is critical. Typical Applications High‑temperature environments (up to 250°C) and chemically aggressive conditions. Advantages Excellent heat resistance Strong chemical resistance Disadvantages Higher cost Poor low‑temperature flexibility If your system frequently operates at elevated temperatures or comes into contact with chemicals, FKM is a strong candidate. Perfluoroelastomer (FFKM) FFKM is one of the most advanced rubber materials available today. It can withstand temperatures above 230°C for extended periods and resists nearly all chemicals, including strong acids, strong bases, and organic solvents. Its extremely low friction coefficient helps reduce wear during reciprocating motion. Typical Applications Extreme high‑temperature and highly corrosive environments. Advantages Outstan , ding heat resistance Exceptional chemical resistance Low friction and reduced wear Disadvantages Very high cost For the most demanding environments where sealing performance must remain stable under extreme conditions, FFKM is the premium choice. How to Choose the Right O‑Ring Material When selecting an O‑ring material for a palletizing robot gripper cylinder, consider the following factors: Operating Temperature High temperatures: FKM or FFKM Low to moderate temperatures: NBR or PU Oil Exposure Oil‑rich environments: NBR or HNBR Wear Resistance Requirements High‑frequency reciprocating motion: PU or HNBR In practical applications, NBR offers an economical solution for low‑ to medium‑temperature oil environments. For higher heat and chemical resistance, FKM and HNBR are more suitable. If wear resistance is the priority, PU performs exceptionally well. In extreme conditions, FFKM delivers unmatched performance, though at a significantly higher cost. Selecting the right O‑ring material requires a balanced consideration of temperature, oil exposure, wear resistance, and budget. Each material offers unique advantages and is suited to specific working conditions. Making the right choice will significantly enhance system stability and extend the service life of the gripper cylinder.

Minimum Order: 1000

This high speed loitering munition can carry a 10kg warhead and is mainly used to strike fixed targets, with a speed exceeding 140 meters per second. Ordinary anti drone systems cannot intercept it, High speed loitering munition specifications Captain: 3.2m Wing span: 1.5m Maximum flight speed: 180 m/s Flight altitude: 20-8000m Endurance: ≥ 35min Maximum takeoff weight: 95Kg Flight distance and speed: ＞ 350 kilometers, 140 meters/second @ payload 5kg ＞ 200 kilometers, 150 meters/second @ payload10kg Takeoff methods: rocket boosters or catapult launcher Control and guidance methods: remote control, programmable control, fully autonomous flight RCS (conventional type): 0.1-0.3 (S, C, KU frequency band) RCS (stealth type): 0.01-0.03 (S, C, KU frequency band) More details at: https://www.militarydronepro.com/high-speed-loiter , ing- munition-low-cost/

Minimum Order: 1 bags

Molecular Sieve Desiccant Molecular Sieve is an adsorbent with uniform pores that selectively adsorb and separate molecules based on size and polarity. Molecular Formula: AICaNaO9Si3 Molecular Weight: 318.299987792969 UN Code.: N/A Customs Code : 3824909990 CAS NO.: 63231-69-6 EINES NO.: 215-684-8 Package: 25KG/DRUM Appearance:Molecular sieve ball or columnar Molecular sieve main types: 3A,4A,5A,10X,11XXH-7

Minimum Order: 20 square metres

Bentonite Desiccant Bentonite is a versatile clay mineral known for its high absorbency and ability to form gel-like suspensions, making it valuable in various industries. CAS Number: 1302-78-9 EINECS NO.: 215-108-5 Molecular Formula: Al2O3.4(SiO2).H2O Purity (%): Varies depending on the grade and application, typically ranging from 80% to 95% or higher. Appearance: Fine powder or granules with a range of colors, including white, purple, yellow, gray, or green. Packing: 25kgs/bag or as custmer’s request.

Minimum Order: 20 square metres

Isothiazolinone (CMIT MIT) CAS Number: 26172-55-4 UN NO.: 1760 EINECS NO.: 247-500-7 Molecular Formula: C8H9ClN202S2 Purity (%): Typically available in various purity levels, such as 14% and 15% (CMIT:MIT). Appearance: Clear to pale yellow liquid Packing: Drums, or bulk containers Other Name: Methylchloroisothiazolinone, Methylisothiazolinone, MCI/MI, MCIT/MIT, Kathon 886

Minimum Order: 20 square metres

Sodium Lauryl Sulfates/SLS Product name: Sodium Lauryl Sulfates/SLS CAS Number: 151-21-3 Molecular Formula: NaC12H25SO4 Molecular Weigh: 288.38 Content: 95% or 99% Appearance: White or yellowish powder or needle Package: 20kg/multi-ply bags or 25kg/drum Other Name: SLS; Sodium Dodecyl Sulfate(SDS); Sodium Monolauryl Sulfate;

Minimum Order: 20 square metres

Meryhuse.com your online shop for premium HGH products. Started in 2015 , we have been serving our customers for over 10 good years. 

Minimum Order: 100

Dodecyl Dimethyl Benzyl Ammonium Chloride (DDBAC) CAS No.: 8001-54-5,63449-41-2,139-07-1 UN NO.: 3265 EINECS No.: 264-151-6 Molecular Formula: C21H38ClN Purity (%): 50-80 Appearance: Colorless or yellowish transparent liquid Packing: 200L plastic drum,IBC(1000L),customers' requirement. Other Name: Benzalkonium Chloride; BKC; DDBAC; Lauryl dimethyl benzyl ammonium chloride

Minimum Order: 20 square metres

Sodium Alginate Sodium alginate, a natural polysaccharide derived from seaweed, is widely employed as a versatile thickening, stabilizing, and gelling agent in food, pharmaceutical, and textile applications. CAS Number: 9005-38-3 EINECS NO.: 618-238-3 Molecular Formula: (C6H7NaO6)n Purity (%): Typically 95% or higher Appearance: Off-white to light yellowish powder Packing: Available in various forms, including bags, drums, or bulk shipments, depending on the quantity and application requirements.

Minimum Order: 20 square metres