China Products List

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:Structural Composition of Mine Pneumatic Air Door Control DeviceThe mine pneumatic air door control device is the core system that enables automatic opening, closing, and stable operation of air doors. Its structure is designed around the logic of "sensing trigger - command control - power drive - status feedback" and mainly includes the following key components:Sensing and Detection ComponentsSensor Device: Typically uses infrared or ultrasonic sensors installed at preset positions on both sides of the air door to capture real-time signals of personnel, vehicles, or equipment passage. The sensors are resistant to dust, moisture, and vibration, enabling accurate target detection in complex underground environments while avoiding false alarms or missed detections. <img src="https://img-i-album.toocle.com/view/2025/08/06/8e/6892d56513a8e.jpg" style="max-width:100%;"/>Signal Transmission Lines: Transmit electrical signals captured by the sensors stably to the control core. These lines often use wear-resistant and interference-resistant cables to ensure continuous and accurate signal transmission.Control Core ComponentsMain Controller: Acts as the "brain" of the device, consisting of a programmable logic controller (PLC) or a dedicated control module with built-in preset program logic. Its function is to receive signals from the sensing components, validate them, and then issue commands to the drive system for opening, closing, or maintaining the current state.Operation Panel: Equipped with buttons, indicator lights, etc., it allows manual adjustment of parameters (such as opening/closing delay times) and monitoring of device status (e.g., normal operation, fault alarms). Some panels also support remote control signal input.Protection Module: Includes overvoltage protection, short-circuit protection, and fault self-diagnosis units. In cases of abnormal air pressure or circuit faults, it automatically cuts off output commands and triggers alarms to ensure safe system operation.Power Drive ComponentsPneumatic Power Source: Primarily consists of an air storage tank and a pressure reducing valve. The air tank stores compressed air as the power medium, while the pressure reducing valve adjusts the air pressure to a stable range suitable for the device (typically 0.4-0.6 MPa), ensuring smooth and reliable driving actions.Pneumatic Actuator: Composed of a cylinder, piston rod, and connecting parts. The cylinder is connected to the air source via air tubes. Upon receiving commands from the controller, it drives the piston rod to extend or retract by introducing or releasing compressed air, thereby rotating the air door open or resetting it to a closed position.Pneumatic Control Valve Group: Includes solenoid valves and check valves. Solenoid valves control the on/off and direction of compressed air flow to switch the cylinder's extension and retraction. Check valves prevent air backflow, ensuring stable positioning of the door during opening or closing.Mechanical Auxiliary ComponentsDoor Linkage Mechanism: Consists of hinges, connecting rods, or transmission rods that link the pneumatic actuator to the air door. It converts the linear motion of the cylinder into the rotational motion of the door, ensuring the door opens to the preset angle (typically around 90°).Buffer and Limit Devices: Cushioning pads and mechanical limit blocks are installed at the endpoints of the door's opening and closing paths to reduce impact between the door and the frame, while also preventing excessive movement to protect structural integrity.Sealing and Support Components: Wear-resistant sealing strips are installed along the door frame edges to ensure tight sealing when the door is closed. The support framework provides a fixed base for the entire device, ensuring all components are securely installed and adaptable to underground vibration conditions.Status Feedback ComponentsPosition Sensor: Installed on the cylinder or door linkage mechanism to detect the real-time position of the door (fully open, fully closed, or intermediate state) and feed the position signal back to the main controller for closed-loop control.Audible and Visual Indicators: Composed of indicator lights and buzzers. A green light illuminates and a sound is emitted when the door opens, switching to a red light or turning off after closing, conveying door status information to passing targets.These components work in coordination, triggering control commands through sensing signals, utilizing pneumatic power to achieve automatic door movement, and ensuring operational accuracy through feedback mechanisms, collectively forming the complete operational system of the mine pneumatic air door control device.EditShare more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:Hot Spring Water with Weak Alkaline Balls<img src="https://img-i-album.toocle.com/view/2023/09/25/74/6510de8289874.jpg" style="max-width:100%;"/>Water Treatment Effects of Weak Alkaline Tourmaline BallsWater treated with weak alkaline tourmaline balls can exhibit various restructuring phenomena, turning tap water into ideal functional water. The effects are described as follows:(1) Reduces water molecule clusters (to 5-6 molecules).(2) Adjusts pH to 6.5-7.5 (based on the original water's pH).(3) Lowers oxidation-reduction potential.(4) Imparts interfacial activity (enhances water's detergency, permeability, and reduces surface tension).(5) Provides deodorizing and sterilizing effects (eliminates microbial odor, metal odor, and chemical odor).(6) Improves freshness preservation (e.g., extends the life of cut flowers).(7) Enhances anti-oxidation effects.(8) Stabilizes chlorine (eliminates chlorine odor and unpleasant tastes).(9) Passivates metals (prevents formation of red rust and reddish water).(10) Removes and prevents silica scaling.(11) Provides health-beneficial ionized minerals (magnesium, iron, silica, etc.).(12) Removes sticky substances (microbial aggregates).(13) Imparts therapeutic effects (transforms into immune-boosting water).<img src="https://img-i-album.toocle.com/view/2023/09/25/63/6510de959b663.jpg" style="max-width:100%;"/>The above effects turn tap water into reduced water with smaller molecule clusters. Stabilized chlorine eliminates chlorine odor. Dissolved tourmaline minerals make tap water tasty and healthy.Tourmaline ceramic balls can decompose organic matter into carbon dioxide and water, absorb harmful metal ions, and convert them into safe, insoluble metals, meeting safety standards.Water treated with tourmaline ceramic balls complies with the water quality standards for safe water as defined by food safety laws.There are 46 water quality benchmark items, along with monitoring items (26 items) and comfort water quality items (13 items). Monitoring items track substances with low detection levels, including harmful chemicals, organic matter like toluene, and inorganic substances like nickel. Comfort water quality items are essential for tasty water. Additionally, tap water contains over 400 types of harmful chemicals. Therefore, water treated with tourmaline ceramic balls, which can broadly address harmful substances, is indeed safe drinking water.Water treated with restructuring weak alkaline tourmaline balls can be used not only as drinking water but also as industrial water, food processing water, aquaculture water, agricultural water, livestock treatment water, and other industrial waters. Moreover, the advantage of tourmaline ceramic ball-treated water is that even when used in processed foods, it can restructure the water within, delivering excellent effects. This restructuring effect also applies to water used in cosmetics, water-based raw materials, and chemical products.Tengxiang Environmental Protection Product Series:1. Negative Potential Hydrogen-Rich Series: Hydrogen-rich materials, negative potential ceramic balls, negative potential metal rods (polished, unpolished), negative potential metal granules, negative potential metal sheets, magnesium granules2. Chlorine and Heavy Metal Removal Series: Chlorine removal balls, calcium sulfite granules, chlorine removal rods, KDF heavy metal removal granules3. Alkaline Series: Weak alkaline balls, high alkaline balls, high-temperature tourmaline balls4. Mineralization Series: Maifan stone balls, wooden fish stone balls, mineralization balls, vitamin C balls, selenium-rich balls, microporous balls5. Activated Water Series: High-content small molecule balls, ordinary small molecule balls, negative ion balls, far-infrared balls, microcrystalline stones, piezo stones, magnetic energy balls6. Functional Ingredients: Shower ingredients, faucet ingredients, water machine ingredients, kettle ingredients, oil-cutting ingredients, smoke odor removal ingredients, oil-dissolving filter media, blue ink removal filter media7. Oil-Cutting Series: Oil-cutting balls, white oil-cutting balls, gray oil-cutting balls8. Filling Series: Balls for filling mattresses, cushions, and pillows; negative ion filling balls; far-infrared filling balls; loess balls; Maifan stone filling balls; tourmaline filling balls9. Baking Series: White baking weights, pressing stones, baking beans, roasting beans10. Health Heat Therapy Series: Glazed heat therapy balls, negative ion heat therapy balls, far-infrared heat therapy balls, iron-containing heat therapy balls11. Air Purification Series: Mineral crystals carbon, PPC composite purification powder, diatomite balls (remove formaldehyde, benzene, ammonia, TVOC, PM2.5, and odor particles)12. Alumina Series: High alumina balls, medium alumina balls, low alumina balls, grinding ballsZibo Tengxiang Water Treatment Product Combinations:Tengxiang small molecule balls + chlorine removal balls + VC ballsTengxiang calcium sulfite balls + germanium balls + microporous ballsTengxiang negative potential rods + mineralization balls + microcrystalline stonesTengxiang tourmaline balls + ordinary small molecule balls + oil-cutting ballsTengxiang far-infrared balls + chlorine removal granules + alkaline ballsTengxiang hydrogen-rich balls + KDF + negative ion balls + calcium ion ballsTengxiang Maifan stone balls + mineralization balls + magnesium granules + alkaline ballsTengxiang high-temperature tourmaline balls + negative potential ceramic balls + white mineral ballsTengxiang high alkaline balls + high-content small molecule balls + magnesium chipsTengxiang wooden fish stone balls + negative ion balls + hydrogen-rich granulesTengxiang negative potential metal granules + magnetic energy balls + metasilicic acid ballsTengxiang laundry balls + tourmaline balls + negative ion ballsTengxiang has a comprehensive after-sales team that can provide various filter media usage ratios and guidance. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:Working Reset Process of Mine Pneumatic Pressure-Free Air DoorsThe reset process of mine pneumatic pressure-free air doors is an automatic cycle where the system transitions from the "passage state" back to the "standby state," accomplished through the coordinated action of sensor detection, controller commands, and pneumatic drive. The specific steps are as follows:1. Passage Completion DetectionAfter personnel or vehicles completely pass through the air door, infrared sensors (or other sensing devices) on both sides of the door monitor the detection range in real time. Once it is confirmed that there are no remaining targets in the area, an electrical signal indicating "passage completed" is sent to the core controller.If there is continuous obstruction, such as by a long vehicle, the sensors will continue to send signals to ensure the door remains open until the target completely leaves the detection area.2. Delay Program Initiation<img src="https://img-i-album.toocle.com/view/2025/08/06/bd/6892d4cc23dbd.jpg" style="font-size: 14px; max-width: 100%;"/>Upon receiving the "passage completed" signal, the controller automatically initiates a preset delay program (the delay time can be adjusted according to passage needs, typically 5-30 seconds), providing a buffer period to prevent secondary passage within a short time.During the delay period, the door remains open, and the audible and visual warning devices continue to operate (e.g., green light on, warning sound active), indicating that the passage phase is still ongoing.3. Door Closing Command TriggeredAfter the delay period ends, the controller determines that there is no need for secondary passage and immediately sends a door closing command to the pneumatic drive system. The pneumatic valve actuates and switches, stopping the input of compressed air into the cylinder, which then begins to exhaust and depressurize.4. Door Closing ActionThe cylinder piston rod retracts under the release of air pressure, driving the door to slowly rotate and close via a linkage mechanism. During the closing process, the speed control device regulates the action speed (typically taking 5-8 seconds to complete closing), ensuring smooth movement of the door and avoiding impact.When the door closes, the sealing strip between the door frame and the door leaf tightly adheres, achieving effective sealing and maintaining air pressure balance in the ventilation area.5. System Status ResetAfter the door is fully closed, the controller activates the locking device to ensure that air doors on the same side or opposite sides cannot open simultaneously, preventing abnormal airflow. At the same time, the pneumatic system resets to its initial pressure state, and the sensors resume real-time monitoring mode.The audible and visual warning devices turn off, and the entire system enters standby mode, awaiting the next sensing signal to trigger and complete the entire work cycle.Through the above process, mine pneumatic pressure-free air doors can automatically complete the reset from post-passage closing to standby state without manual intervention, ensuring continuous adaptation to the ventilation control needs of complex underground environments. more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Cutting Power Tools/Drill Bits

Product Description:<img src="https://img-i-album.toocle.com/view/2024/04/19/c8/6621bed352fc8.jpg" style="max-width:100%;"/>The working principle of the tumbler involves using the physical impact principle in a vacuum state to make meat blocks or minced meat tumble up and down inside the drum, colliding with each other and being beaten, thereby achieving massaging and marinating effects. The marinade is fully absorbed by the meat, enhancing the binding force and elasticity of the meat, improving the taste and cross-section effect of the product; it can enhance water retention, increase the yield; and it can improve the internal structure of the product.Features of the vacuum tumbler:1. Using a vacuum tumbler allows the marinade to be evenly absorbed into the raw meat, quickly marinating the product to make it flavorful.2. Marinating with a vacuum tumbler enhances the binding force of the meat and improves its elasticity.3. Meat products marinated with a vacuum tumbler ensure the sliceability of the meat, preventing it from breaking or cracking during slicing.A tumbler is a modern food processing equipment widely used in meat processing, marinating, canned food production, and the catering industry. Through mechanical tumbling and massaging, it makes meat more tender and flavorful, improving the quality and taste of the product. This article will introduce the working principle, types, features, and application scenarios of tumblers. (Food processing machinery manufacturer Tel: 138*5448-1138)I. Working Principle of the TumblerThe tumbler makes meat more tender and flavorful during processing through tumbling and massaging. Its working principle is mainly based on the following two aspects:1. Tumbling Effect: The tumbler uses forward and reverse rotation to make meat blocks continuously tumble, collide, and rub inside the drum, gradually softening the surface of the meat blocks. The internal muscle fibers are appropriately stretched and compressed, making the meat blocks more tender.2. Massaging Effect: During the tumbling process, the meat blocks are subjected to certain pressure and friction. These forces act on the surface and muscle fibers of the meat blocks, similar to the effect of manual massaging, helping to promote blood circulation inside the meat blocks and relax the muscle fibers, making the meat more tender and delicious.<img src="https://img-i-album.toocle.com/view/2024/04/19/28/6621bee039a28.jpg" style="max-width:100%;"/>Types of TumblersDepending on their structure and function, tumblers can be divided into the following types:1. Horizontal Tumbler: The horizontal tumbler is a common type of tumbler with a simple structure and easy operation. It is usually made of stainless steel and equipped with mixing blades inside to stir and tumble large pieces of meat. This equipment is suitable for meat processing plants and the catering industry where large quantities of meat need to be processed.2. Vertical Tumbler: The vertical tumbler is a device suitable for small-batch processing, with a compact structure and small footprint. It is usually made of transparent glass or acrylic, allowing the operator to observe the tumbling process at any time. This equipment is suitable for small food processing enterprises and individual workshops.3. Vacuum Tumbler: The vacuum tumbler is a modern tumbling device that can perform tumbling and massaging in a vacuum environment. This equipment can effectively remove gases from the meat blocks, reduce oxidation and discoloration during processing, and improve the quality and shelf life of the product. It is suitable for meat processing plants and canned food production enterprises where long-term preservation is required.4. Frequency Conversion Tumbler: The frequency conversion tumbler is an energy-saving and environmentally friendly device that uses frequency conversion technology to adjust the tumbling speed and time according to different processing needs. This equipment can effectively reduce energy consumption and noise pollution, improving production efficiency and product quality. It is suitable for food processing enterprises and the catering industry with high environmental requirements. more>

Category:Hardware & Tools/Brushes/Other Brushes

Product Description:The zong leaf washing machine adopts bubble water bath cleaning. This cleaning machine uses bubble cleaning, suitable for washing jujubes, and can be customized according to the quantity of the product. 1. The frame is made of SUS304 stainless steel, meeting the usage standards of the food industry. 2. It uses bubble agitation, brushing, and spraying technology to clean the materials. 3. Each unit in the production line can be customized according to the user's specific processing needs to meet process requirements. 4. The cleaning speed is steplessly adjustable, allowing users to set it arbitrarily based on different cleaning contents. 5. The machine is compact in structure, highly automated, and suitable for enterprises of various processing scales. Especially suitable for: jujube washing and soaking equipment. Advantages: 1. The material is equipped with a high-pressure spray design at the inclined lifting section after cleaning, ensuring surface rinsing of the material so that no foam remains when the material exits (spray water is recycled, saving energy and reducing emissions). 2. The tank is made of 2mm stainless steel; stress-bearing parts are made of 4mm stainless steel; the frame is made of 100x50x3mm stainless steel square tubes; all bearings and bearing seats of the machine are made of stainless steel. 3. The machine is equipped with multiple (φ108) cleaning holes, and both sides of the equipment are fitted with large (240x120mm) cleaning ports, allowing high-pressure water guns to reach the bottom of the equipment for easy and hygienic cleaning.Features and uses of the zong leaf washing machine:1. Except for standard parts such as motors and bearings, the zong leaf washing machine is made of SUS304 stainless steel, meeting export food hygiene requirements. The cleaning equipment is equipped with a bubble generator, which causes the materials to tumble, effectively removing pesticide residues from the product surface. At the same time, an appropriate amount of chemicals can be added for disinfection and color fixation. Floating debris can overflow from the overflow tank, and sediments can be discharged from the drain port to achieve the cleaning purpose. With the combined action of bubbles, waves, lifting, and spraying, this cleaning machinery offers high cleanliness, energy savings, water conservation, stable and reliable performance, and the ability to maintain the original color. It is an ideal equipment for the vegetable, food processing, and catering industries.2. The zong leaf washing machine is suitable for: leafy vegetables, edible fungi, fruits, aquatic products, Chinese herbal medicines, and other granular, leafy, and root-based products for cleaning, soaking, sterilization, disinfection, and color fixation.3. The conveyor part of this machine uses SUS304 stainless steel mesh belts, offering stable operation and a long service life, meeting food hygiene requirements. (Food processing machinery manufacturer Tel: 138*5448-1138) more>

Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

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Category:Hardware & Tools/Welding Materials & Accessories/Other Welding Materials

Product Description:<img src="https://img-i-album.toocle.com/view/2024/12/18/b0/6762774a246b0.png" style="max-width:100%;"/> more>