Offers to Sell

BHJG250 pipe bucking machine unit has six parts: driving clamp system、backup clamp system、hydraulic system、pneumatic system、manipulating platform and frame base. The Driving clamp is driven by hydraulic motor and it is used to screw on (screw off) . The t can be positive and negative direction of rotation to meet the requirements of make-up or break-out. Torque up to 68kN. M. The Buckup clamp is driven by pneumatic cylinder and it is used to fix the pipe. the screw on torque value is output by tension sensor and controlled by PLC system. The Max. drift diameter of the bucking machine is 250mm, which can finish the make-up or break-out of 2 7/8″～8 5/8″ casing, tubing and drill pipe. Product Application  Pipe bucking machines produced by our company is special equipment used to screw on and off the casing, tubing and drill pipe coupling.

QK1330 CNC Pipe Threading Machine is an efficient, high-precision two coordinate continuous control CNC machine independently researched and developed by our company according to the development needs of petroleum industry. The machine has high power, good rigidity, can cut straight, oblique, arc, male, inch thread, and has a variety of functions such as tip radius compensation. This machine highlights the characteristics of high rigidity and high power, and is a high precision and high efficiency pipe thread machining machine. With the latest innovative design, the pipe can be completed by radial and axial feed of the tool. A variety of applications, such as pipe beveling, facing, edging, deburring, tapering and threading, can be performed on the inside and outside of pipes without changing tools for different angles or shapes.   Product Application 1. The CNC Pipe Threading Equipment can be used for rough machining and finishing machining of mechanical parts, especially suitable for petroleum, mining, machinery and other industries, for high-efficiency, high-volume, high- precision processing of rotary parts. 2. The machine can process steel, cast iron and non-ferrous metals and other materials. 3. The machine is also suitable for small and medium-sized batches of shaft, plate parts of the internal and external cylindrical surface, cone, thread, drilling, reaming and curve turning parts. The machining accuracy is up to IT7 and the surface roughness of the machined workpiece is up to Ra1.6.

MPP pipe jacking, also same name is MPP high voltage power cable protection pipe, is divided into excavation and trenchless. It is made of modified polypropylene as main raw material and added with necessary additives and extruded to form pipes. Advantage MPP pipe jacking has the characteristics of high temperature resistance, external pressure resistance, excellent electrical insulation, light and smooth pipe, small friction force, and hot butt welding.It is suitable for over 10kV High voltage transmission line cable pipe material.The long-term usage temperature is-5~70℃.The common specifications of MPP power pipes are 110mm~250mm diameter, divided into common and reinforced type.The ordinary type is suitable for excavation and construction and trenchless through construction with less than 4M buried depth.The reinforced type is suitable for Trenchless crossing construction with buried depth greater than 4M.

Casing thread protectors are caps protect Casing threads and seals during loading, unloading, transportation and storage Advantage The Casing Thread Protectors has clear thread. Nice and smooth surface. We can produce premium Casing thread protector and customize. The main function The Casing Thread Protectors are designed to provide protection to the connections during handing transportation, and to prevent dust and debris entering the threads and tube body. The threads are made in such a manner that they cover all the threads of the connections and prevent the Casing thread protector from stripping or vibrating loose. How to use? In the process of transporting Casing in the oil field, the worker screws the Casing thread protector on Casing both ends according to the corresponding thread type and size.

Drill Pipe Protectors (DPP) are reinforced molded rubber pads that fit around the outside diameter of the drill pipe to provide a one-time downhole wear surface between the inside diameter of the casing and the drill string. DPP protects the casing ID from wear caused by the drill string. The most common applications are deviated wells, deep holes, fast rotation, high torque and offshore applications. DPP Main features Provides a sacrificial wear surface. Hinged canister for easy installation. Top and bottom tapered shoulders. Available in grooved and smooth designs. NBR and XNBR compounds available Application inclined shaft deep hole Drill holes at fast rotational speeds under high torque offshore Pipe Thread Protector Available Materials: lightweight plastic Only available in open design Designed for the environment The most economical option Made of polyethylene grey heavy duty plastic Only available in closed design Made of polyethylene

Over the years, I’ve lost count of how many times distributors, wholesalers, and even maintenance engineers have asked me the same thing: “What’s the difference between an O-ring and an O-ring cord? Which one should I keep in stock?” It’s a fair question. At first glance, they look similar, both are round in cross-section, both made from elastomers. But in practice, the choice between the two can affect your inventory strategy, your customer’s downtime, and even your reputation as a supplier. Let me walk you through it the way I usually explain it at trade shows or during factory visits. O-Rings: The Everyday Standard Think of O-rings as the “ready-to-go” solution. They’re molded into precise sizes, standardized across the industry, and available in thousands of specifications. · Stock advantage: If you’re a distributor, you know the drill, common sizes move fast. Automotive repair shops, hydraulic service centers, gearbox rebuilders, they all need them yesterday. · Applications: Engines, pumps, motors, industrial robots, even household appliances. Anywhere a groove is cut to a standard dimension, an O-ring is the natural fit. · Ease of use: No cutting, no bonding. Just drop it in the groove, lubricate if needed, and you’re done. O-Ring Cords: The Flexible Fixer O-ring cords are a different animal. They come as long spools of rubber cord, same round cross-section, but not closed. You cut the length you need, bond the ends, you’ve got a custom O-ring. · Large diameters: Picture a wind turbine shaft seal. Nobody keeps a 1.5‑meter O-ring on the shelf. A cord solves that. · Odd sizes: A chemical plant calls with a flange dimension you’ve never seen before. Instead of saying “lead time six weeks,” you cut a cord and bond it. · Inventory efficiency: One roll of cord can cover dozens of diameters. That’s a lifesaver for distributors who don’t want to tie up capital in slow- moving stock. Materials and Craftsmanship Both O-rings and cords use the same elastomers: · NBR (Nitrile) for oil resistance in pumps and gearboxes. · FKM (fluoroelastomer) for high temperature and aggressive chemicals. · EPDM for water and steam. · Silicone for low-temperature flexibility and appliances. The real difference is in the joint. A molded O-ring has no weak point. A cord does, and that joint is where experience matters. Cold bonding is quick and fine for static, low-pressure seals. Hot vulcanization takes longer but gives you a joint that can handle pressure and movement. Installation Tips · O-Rings: Don’t overstretch them, don’t twist them, and keep the groove clean. Simple advice, but I’ve seen too many failures from ignoring it. · O-Ring Cords: Cut square, bond carefully. For large diameters, hot vulcanization is worth the effort. A sloppy joint will come back to haunt you. FAQ Q1: Should I stock both? A: Yes. O-rings for the fast-moving, everyday demand. Cords for emergencies and non-standard jobs. Q2: Are bonded cords reliable? A: They can be. For static, low-pressure applications, cold bonding is fine. For dynamic or high-pressure, hot vulcanization is the safer bet. Q3: How do I avoid after-sales headaches? A: Work with a supplier who doesn’t just ship rubber but also provides technical guidance. At NQKSF, we often help partners choose the right material and bonding method, which reduces warranty claims and keeps customers loyal. From my side, what makes NQKSF stand out is not just the product range but the way we support partners: · Standard parts, fast delivery: Over ten thousand specifications of O-rings, oil seals, and related seals in stock. Urgent orders? We can ship immediately. · Customized solutions: From material selection and groove design to production and testing, we help create seals that match the exact working conditions. · Technical empowerment: With more than 30 years in the sealing industry, we don’t just sell parts—we help optimize sealing systems, reduce maintenance costs, and improve equipment reliability. Why Distributors Trust Us NQKSF is not just a trading name. We are a manufacturing-based enterprise with recognition as: · A leader in the sealing industry. · A company with full model coverage and strong stock availability. · An exporter to 80+ countries worldwide. · A long-term partner to global brands. · Certified as a Provincial Technology Innovation Center, a Specialized and Innovative Enterprise, and a High-Tech Enterprise. · A front-runner in a specialized industrial cluster. So, what’s the difference between O-rings and O-ring cords? In simple terms: O-rings are the standardized, off-the-shelf solution. O-ring cords are the flexible, cut-to-fit option when size or urgency demands it. For distributors and wholesalers, the smart play is to carry both. Let O-rings handle the daily demand, and keep cords as your ace in the hole for non- standard or emergency cases. With NQKSF’s combination of stock, customization, and technical support, you’re not just selling seals—you’re building reliability into your customer’s equipment and trust into your business relationships.

Minimum Order: 1000

Detailed Explanation of Fischer-Tropsch Wax Application in PVC: 1. Primary Function: Serves as an external lubricant During PVC processing (such as extrusion, calendering, injection moulding), the polymer melt undergoes friction and adhesion with the metal surfaces of processing equipment (e.g., screws, barrels, moulds) at elevated temperatures. The lubricant's role is to reduce this friction and adhesion. Function of Fischer-Tropsch wax: As a typical external lubricant, Fischer- Tropsch wax exhibits low compatibility with PVC. During processing, it migrates from the PVC melt to its surface, forming a thin lubricating molecular layer between the melt and metal equipment. Benefits: Reduced processing energy consumption: Minimises friction, lowering equipment drive power requirements. Prevents melt fracture: Reduces shear stress, preventing material degradation from excessive shear. Facilitates demoulding: Effectively prevents products from adhering to moulds during injection moulding or calendering. Enhances production line speed: Superior lubricity permits higher processing speeds.

We are the real Mining locomotive factory in china, we could provide you with E-online chat to show your our factory! Trolley Locomotive is applied in the railway transporation for tract wagons,people and other things.The max traction capacity of a 5 ton trolley locomotive could up to 50 ton. C: Locomotive for coal mining J: Trolley electric locomotives Y: Single-end driver's cab G: Steel wheel,resistor for speed control GB: Steel wheel,chopping wave for speed control Product Description 5t Flameproof Tunneling Mining Trolley Locomotive Manufacturer Supplies Price Adhesive / total weight (t) 5 ton Track gauge (mm) 500.600,762 or 900 Traction (KN) 6.1kN/ 5.74kN Max. Traction (KN) 7.36kN Speed(km/h) 10.6km/h/ 7.5km/h Voltage 250 Power (KW) 7.5KW*2 Dimensions Length(mm) 2700mm/ 2750mm Width(mm) 940,1082 or 1220mm Height(mm) 1550 Wheelbase (mm) 816mm/ 850 mm Wheel diameter (mm) Φ650mm/ Φ520 mm Min Curve radius (m) 5.7-6 m Controller Resistance or IGBT Braking method Mechanical or Hydraulic Brake FAQ What's your product advantages? We have more 40 years experience in this field so that we could design or produce the locomotive as your requirement. We could also provide online service to teach you how to operate and maintain the locomotive. The most important thing that we produce the main part of the locomotive- The traction motors. we could guarante the power of the locomotive. 1.Pre-sales Service: The wide product range enables us to provide our customers with individual machines or complete processing plants. Based on our customer's request and budget, our experts make efficient and reliable solutions, and we produce strictly follow customers' order. What's more, every customer has the chance to visit the working machine in the site before placing the order. 2.After-sales Service: Experienced technicians guidance is available on the phone, and on the internet. One or more engineers will be dispatched to the quarry site to help install the customer's plants.Necessary training about machine daily maintenance to local workers is provided also. 3.Methods of Payment: T/T (Telegraphic Transfer) or Western Union or L/C at sight Handling time for an order: Within 10 days supplied from stock 4.Shipping method: Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 5.Quality Control: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 6.After Services: a. Our sales team will response for your question within 24 hours (Holiday is Excluded) b. Technical Support will be available in any time c. Free replacement will provide once the failure confirmed caused by our product quality

Minimum Order: 1 bags

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Minimum Order: 1 bags

**** Article. No: SD-IE3T Name: 3oz / 90ml PP Jello Injector Description: Food grade plastic for drinks tested by SGS, 2300ml in volume. Size: 4.0 x 4.0 x 16cm Color: Clear (various colors) Packing: 270 units/ctn--60 x 34 x 32cm Container stuff: 120960pcs / 448ctns / 20', 236250pcs / 875ctns / 40', 270000pcs / 1000ctns / 40'hc (without pallet) **** SUNLIT(CHINA) is a professional manufacturer of yard cups, yard glass, hurricane glass, etc., which are popularly used in retails, theme parks, party, cinemas, tourist attractions, clubs, music salons, beaches, ad specialties, bar essentials(accessories) and food service settings. Our products TESTED SAFE FOR DRINKS BY SGS and the resembling authorized laboratories around the world. We have many different designs and we can customize your needs. If you have any need, please kindly let me know, our team will provide a comprehensive solution to you. Also, we have a professional freight forwarder who can deliver the goods to your designated location.(DDP To Door) For more novelty cups, pls visit www.sunlitchina.cn © SUNLIT(CHINA) INC. Tel: +86-754-88343008 +86-13829687043 Email: sales@sunlitchina.cn Websit: https:// www.sunlitchina.cn Add: 2nd Bldg.of Jinliuyuan, Jinxi Garden, Northern Huashan Rd.,Shantou,Guangdong 515041, P.R.C. ice bucket, jello Injector, Smoothie cup, Beverage cup, Yard cups, Frozen drink cup, Juice cup

Minimum Order: 10000

**** Article. No: SD-LP18T Name: 18oz Yard Glass Description: Food grade plastic for drinks tested by SGS, 540ml in volume. Size: 7.7 x 8.5 x 31.5cm Color: Clear (various colors) Packing: 56 units / ctn -- 79 x 32.5 x 34cm Container stuff: 18816pcs / 336ctns / 20', 38416pcs / 686ctns / 40', 43904pcs / 784ctns / 40'hc **** SUNLIT(CHINA) is a professional manufacturer of yard cups, yard glass, hurricane glass, etc., which are popularly used in retails, theme parks, party, cinemas, tourist attractions, clubs, music salons, beaches, ad specialties, bar essentials(accessories) and food service settings. Our products TESTED SAFE FOR DRINKS BY SGS and the resembling authorized laboratories around the world. We have many different designs and we can customize your needs. If you have any need, please kindly let me know, our team will provide a comprehensive solution to you. Also, we have a professional freight forwarder who can deliver the goods to your designated location.(DDP To Door) For more novelty cups, pls visit www.sunlitchina.cn © SUNLIT(CHINA) INC. Tel: +86-754-88343008 +86-13829687043 Email: sales@sunlitchina.cn Websit: https:// www.sunlitchina.cn Add: 2nd Bldg.of Jinliuyuan, Jinxi Garden, Northern Huashan Rd.,Shantou,Guangdong 515041, P.R.C. Smoothie cup, Beverage cup, Yard cups, Frozen drink cup, Juice cup

**** Article. No: SD-RE12T Name: 12oz 2-Ring Yard Cups Description: PET & PP ( tested by SGS ), 360ml in volume. Size: 6.3 x 6.1 x 28.3cm Color: Clear (various colors) Packing: 96 units / ctn -- 61 x 30 x 56cm Container stuff: 27936pcs / 291ctns / 20'; 56448pcs / 588ctns / 40'; 63744pcs / 664ctns / 40'hc; **** SUNLIT(CHINA) is a professional manufacturer of yard cups, yard glass, hurricane glass, etc., which are popularly used in retails, theme parks, party, cinemas, tourist attractions, clubs, music salons, beaches, ad specialties, bar essentials(accessories) and food service settings. Our products TESTED SAFE FOR DRINKS BY SGS and the resembling authorized laboratories around the world. We have many different designs and we can customize your needs. If you have any need, please kindly let me know, our team will provide a comprehensive solution to you. Also, we have a professional freight forwarder who can deliver the goods to your designated location.(DDP To Door) For more novelty cups, pls visit www.sunlitchina.cn © SUNLIT(CHINA) INC. Tel: +86-754-88343008 +86-13829687043 Email: sales@sunlitchina.cn Websit: https:// www.sunlitchina.cn Add: 2nd Bldg.of Jinliuyuan, Jinxi Garden, Northern Huashan Rd.,Shantou,Guangdong 515041, P.R.C. Smoothie cup, Beverage cup, Yard cups, Frozen drink cup, Juice cup

A dust seal is job is straightforward in theory—keep contaminants out. In practice, it is a constant battle against fine dust in a gearbox housing, moisture creeping into a motor bearing, or abrasive sand clinging to a hydraulic cylinder rod. The right choice of dust seal can mean the difference between a smooth production run and an unexpected shutdown. What Makes a Good Dust Seal There is no single “best” dust seal for every application. The working environment dictates the design and material. · In light-duty, relatively clean conditions, a single-lip profile may be sufficient. · In harsher settings—think construction machinery operating in wet soil—a double-lip design offers better protection, with the outer lip scraping debris and the inner lip blocking moisture. Where space is limited, combination seals integrate dust and oil sealing in one component. Material choice is equally critical. NBR works well for general machinery exposed to oil mist but not extreme abrasion. Polyurethane (PU) is favored in hydraulic systems for its wear resistance and elasticity. FKM handles high temperatures and aggressive chemicals, making it suitable for certain energy and chemical processing equipment. PTFE is the go-to for high-speed shafts where low friction is essential. Where They Are Used Dust seals are not confined to one sector. They appear in: · Pump and motor assemblies, where they protect bearings from airborne particles and moisture. · Gearboxes and engines, keeping abrasive particles out of lubrication systems. · Industrial robots and machinery, maintaining clean joint surfaces during repetitive motion. · Hydraulic cylinders in excavators or loaders, preventing grit from damaging the rod surface. · Wind turbine main shafts and metallurgy equipment, where dust and humidity levels are high. · Automotive and heavy truck wheel hubs and driveline components. Considerations for Distributors and Wholesalers From a supply perspective, dust seals are not just a commodity. They are part of a reliability strategy for the end user. Distributors often weigh several factors before committing to a supplier: 1. Availability and Lead Time: Downtime costs money. DEDE maintains an extensive inventory—over ten thousand standard specifications for O-rings, oil seals, and dust seals—ready for immediate dispatch. This allows urgent orders to be filled without delay. 2. Customization Capability: Not every application fits a standard size or profile. DEDE offers a full-service approach: material selection, profile design, prototyping, and testing. This ensures non-standard seals match the actual operating conditions. 3. Technical Support: With more than three decades in the sealing industry, DEDE’s team can advise on system-level improvements, helping customers extend seal life, reduce maintenance intervals, and improve equipment uptime. 4. Global Reach and Recognition: DEDE products are shipped to over 80 countries and are trusted by well-known international brands. The company has been recognized as a Provincial Technology Innovation Center, a Specialized and Innovative Enterprise, a High-Tech Enterprise, and a Leading Company in a Specialized Industrial Cluster. Field Observations One recurring issue seen in the field is the mismatch between seal design and the actual contamination profile. For example, a dust seal designed for fine powder environments may fail quickly in wet, gritty conditions. This is why site-specific information—particle size, moisture levels, operating temperature—should guide the selection process. It’s also why experienced suppliers ask detailed questions before recommending a product. Another point often overlooked is installation. A well-made dust seal can underperform if installed without proper alignment or if the shaft surface finish is outside tolerance. These are small details, but they have a large impact on performance. Why This Matters For the end user, a dust seal is inexpensive compared to the cost of the equipment it protects. For distributors and wholesalers, offering the right seal builds trust and long-term business. It’s not just about selling a part; it’s about reducing risk for the customer. Dust seals may be small, but their role in protecting industrial equipment is significant. By combining a broad inventory, customization expertise, and technical support, DEDE continues to provide reliable sealing solutions for industries ranging from pumps and motors to construction machinery, wind power, and automotive applications.

Minimum Order: 1000