• http://www.cmosecb.com/data-converter-ics/integrated-or-special-function-data-converter/
    low price Integrated Or Special Function Data Converter ManufacturerTexas Instruments Manufacturer Product NumberTI Medical AFEs Part NumberAFE4460 AFE4960P TX7516 AFE4960 AFE4500 AFE4950 AFE49I30 AFE58JD32LP AFE44I30 AFE58JD48 AFE44S30 TX7316 AFE2257 TX7332 AFE5832LP AFE4420 AFE5832 AFE58JD32 AFE4900 AFE5828 maximum flexibility allowing the designer to optimize sensor design and industrial design for their needs. Digital X-ray AFEs High-channel-count analog front ends for flat panel X-ray detector (FPD), charge detectors and capacitance measurement systems. The full signal chain, including up to 256 integrators, programmable gain amplifiers, correlated double samplers and high-speed ADCs, is integrated and offered in chip-on-film packages. The portfolio offers wide flexibility of charge ranges and scan times, allowing users to trade power vs noise for both static and dynamic applications. Computer tomography (CT) AFEs Our high channel count, current-input ADCs with adjustable range and speed allow for direct connection to photodiodes on the inputs. This portfolio consists of products that support measurement of extremely low photo-currents, while providing very high linearity across the entire input range. These products offer very low-power (few milli-watts) SpO2Biosensing AFEsDSBGA|367 mm2: 2.55 x 2.55 (DSBGA|36) AFE49I30Ultra-low-power integrated AFE for wearable optical biosensing with FIFO, I2C and ECGBiosensing AFEs---See datasheet AFE58JD32LP32-ch ultrasound AFE with 18.5-mW/ch power, digital demodulator, and JESD204B and LVDS interfaceUltrasound AFEsNFBGA|289225 mm2: 15 x 15 (NFBGA|289) AFE44I30Ultra-low-power integrated analog front end (AFE) for wearable optical biosensing with FIFO and I2CBiosensing AFEs---See datasheet AFE58JD4812.8-GB JESD204B ultrasound AFE with 16-bit 125-MSPS analog-to-digital converter (ADC)Ultrasound AFEsNFBGA|289225 mm2: 15 x 15 (NFBGA|289) AFE44S30Ultra-low-power integrated analog front end (AFE) for wearable optical biosensing with FIFO and SPIBiosensing AFEs---See datasheet TX731616-channel 3-level or 8-channel 5-level transmitter with integrated transmit beamformerUltrasound AFEsNFBGA|216150 mm2: 15 x 10 (NFBGA|216) AFE2257256-Impedance and ECG Front EndBiosensing AFEsTQFP|32, VQFN|3249 mm2: 7 x 7 (TQFP|32), 16 mm2: 4 x 4 (VQFN|32) AFE5803Fully Integrated, 8-Channel Ultrasound Analog Front EndUltrasound AFEsNFBGA|135135 mm2: 15 x 9 (NFBGA|135) ADS119116-bit, 1-ch, Low-Power Analog Front END (AFE) for ECG ApplicationsBiosensing AFEsTQFP|32, VQFN|3249 mm2: 7 x 7 (TQFP|32), 16 mm2: 4 x 4 (VQFN|32) ADS119216-bit, 2-ch, Low-Power Analog (NFBGA|135) ADS1194Low-Power, 4-Channel, 16-Bit Analog Front-End for ECGBiosensing AFEsNFBGA|64, TQFP|6464 mm2: 8 x 8 (NFBGA|64), 144 mm2: 12 x 12 (TQFP|64) ADS1196Low-Power, 6-Channel, 16-Bit Analog Front-End for ECGBiosensing AFEsNFBGA|64, TQFP|6464 mm2: 8 x 8 (NFBGA|64), 144 mm2: 12 x 12 (TQFP|64) ADS12944-Channel 24-Bit DDC114DDC114: Quad Current Input 20-Bit Analog-To-Digital ConverterComputer tomography (CT) AFEsVQFN|4849 mm2: 7 x 7 (VQFN|48) DDC112Dual Current Input 20-Bit Analog-To-Digital ConverterComputer tomography (CT) AFEsSOIC|28, TQFP|32184 mm2: 10.3 x 17.9 (SOIC|28), 81 mm2: 9 x 9 (TQFP|32)low price Integrated Or Special Function Data Converter website:http://www.cmosecb.com/data-converter-ics/integrated-or-special-function-data-converter/
    http://www.cmosecb.com/data-converter-ics/integrated-or-special-function-data-converter/ low price Integrated Or Special Function Data Converter ManufacturerTexas Instruments Manufacturer Product NumberTI Medical AFEs Part NumberAFE4460 AFE4960P TX7516 AFE4960 AFE4500 AFE4950 AFE49I30 AFE58JD32LP AFE44I30 AFE58JD48 AFE44S30 TX7316 AFE2257 TX7332 AFE5832LP AFE4420 AFE5832 AFE58JD32 AFE4900 AFE5828 maximum flexibility allowing the designer to optimize sensor design and industrial design for their needs. Digital X-ray AFEs High-channel-count analog front ends for flat panel X-ray detector (FPD), charge detectors and capacitance measurement systems. The full signal chain, including up to 256 integrators, programmable gain amplifiers, correlated double samplers and high-speed ADCs, is integrated and offered in chip-on-film packages. The portfolio offers wide flexibility of charge ranges and scan times, allowing users to trade power vs noise for both static and dynamic applications. Computer tomography (CT) AFEs Our high channel count, current-input ADCs with adjustable range and speed allow for direct connection to photodiodes on the inputs. This portfolio consists of products that support measurement of extremely low photo-currents, while providing very high linearity across the entire input range. These products offer very low-power (few milli-watts) SpO2Biosensing AFEsDSBGA|367 mm2: 2.55 x 2.55 (DSBGA|36) AFE49I30Ultra-low-power integrated AFE for wearable optical biosensing with FIFO, I2C and ECGBiosensing AFEs---See datasheet AFE58JD32LP32-ch ultrasound AFE with 18.5-mW/ch power, digital demodulator, and JESD204B and LVDS interfaceUltrasound AFEsNFBGA|289225 mm2: 15 x 15 (NFBGA|289) AFE44I30Ultra-low-power integrated analog front end (AFE) for wearable optical biosensing with FIFO and I2CBiosensing AFEs---See datasheet AFE58JD4812.8-GB JESD204B ultrasound AFE with 16-bit 125-MSPS analog-to-digital converter (ADC)Ultrasound AFEsNFBGA|289225 mm2: 15 x 15 (NFBGA|289) AFE44S30Ultra-low-power integrated analog front end (AFE) for wearable optical biosensing with FIFO and SPIBiosensing AFEs---See datasheet TX731616-channel 3-level or 8-channel 5-level transmitter with integrated transmit beamformerUltrasound AFEsNFBGA|216150 mm2: 15 x 10 (NFBGA|216) AFE2257256-Impedance and ECG Front EndBiosensing AFEsTQFP|32, VQFN|3249 mm2: 7 x 7 (TQFP|32), 16 mm2: 4 x 4 (VQFN|32) AFE5803Fully Integrated, 8-Channel Ultrasound Analog Front EndUltrasound AFEsNFBGA|135135 mm2: 15 x 9 (NFBGA|135) ADS119116-bit, 1-ch, Low-Power Analog Front END (AFE) for ECG ApplicationsBiosensing AFEsTQFP|32, VQFN|3249 mm2: 7 x 7 (TQFP|32), 16 mm2: 4 x 4 (VQFN|32) ADS119216-bit, 2-ch, Low-Power Analog (NFBGA|135) ADS1194Low-Power, 4-Channel, 16-Bit Analog Front-End for ECGBiosensing AFEsNFBGA|64, TQFP|6464 mm2: 8 x 8 (NFBGA|64), 144 mm2: 12 x 12 (TQFP|64) ADS1196Low-Power, 6-Channel, 16-Bit Analog Front-End for ECGBiosensing AFEsNFBGA|64, TQFP|6464 mm2: 8 x 8 (NFBGA|64), 144 mm2: 12 x 12 (TQFP|64) ADS12944-Channel 24-Bit DDC114DDC114: Quad Current Input 20-Bit Analog-To-Digital ConverterComputer tomography (CT) AFEsVQFN|4849 mm2: 7 x 7 (VQFN|48) DDC112Dual Current Input 20-Bit Analog-To-Digital ConverterComputer tomography (CT) AFEsSOIC|28, TQFP|32184 mm2: 10.3 x 17.9 (SOIC|28), 81 mm2: 9 x 9 (TQFP|32)low price Integrated Or Special Function Data Converter website:http://www.cmosecb.com/data-converter-ics/integrated-or-special-function-data-converter/
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    China Integrated Or Special Function Data Converter Suppliers
    CMOSECB is one of the most professional integrated or special function data converter suppliers in China, specialized in providing high quality products with competitive price. Please feel free to buy discount integrated or special function data converter for sale here from our factory. Contact us for pricelist and quotation.
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  • http://www.chinazjtk.com/
    Wuxi Zhongjin Mineral Exploration Tools Co., Ltd Wuxi Zhongjin Mineral Exploration Tools Co., Ltd. is a professional manufacturer and supplier in the production of geological exploration drilling rigs and drilling tools. Main products include wireline coring drill rods and casing tubes, impregnated diamond core bits, surface set diamond core bits, rod shoes and casing shoes, diamond reaming shells, core barrel assembly, overshot assembly, hydraulic underground core drill rigs, reverse circulation drilling rig, surface core drilling rigs, and crawler engineering drilling rigs. The company has strong product development capabilities and production capabilities and can customize products according to customers' special requirements. Our company has advanced CNC processing equipment and a team of experienced drilling and construction machinery engineers. The quality of the product is guaranteed and the production efficiency is improved. Our company attaches great importance to science and technology, talents, quality, and reputation, and strives to build the "Zhongjin" brand wholeheartedly. The company adheres to the principle of "stable quality, service first", takes the market as the goal, relies on technological innovation, continuously develops new products and new processes, and continuously improves product quality. It has won unanimous praise from customers for many years. Focus on management, promote efficiency, and serve all users wholeheartedly. Warmly welcome regular and new customers to visit our company!Wuxi Zhongjin Mineral Exploration Tools Co., Ltd website:http://www.chinazjtk.com/
    http://www.chinazjtk.com/ Wuxi Zhongjin Mineral Exploration Tools Co., Ltd Wuxi Zhongjin Mineral Exploration Tools Co., Ltd. is a professional manufacturer and supplier in the production of geological exploration drilling rigs and drilling tools. Main products include wireline coring drill rods and casing tubes, impregnated diamond core bits, surface set diamond core bits, rod shoes and casing shoes, diamond reaming shells, core barrel assembly, overshot assembly, hydraulic underground core drill rigs, reverse circulation drilling rig, surface core drilling rigs, and crawler engineering drilling rigs. The company has strong product development capabilities and production capabilities and can customize products according to customers' special requirements. Our company has advanced CNC processing equipment and a team of experienced drilling and construction machinery engineers. The quality of the product is guaranteed and the production efficiency is improved. Our company attaches great importance to science and technology, talents, quality, and reputation, and strives to build the "Zhongjin" brand wholeheartedly. The company adheres to the principle of "stable quality, service first", takes the market as the goal, relies on technological innovation, continuously develops new products and new processes, and continuously improves product quality. It has won unanimous praise from customers for many years. Focus on management, promote efficiency, and serve all users wholeheartedly. Warmly welcome regular and new customers to visit our company!Wuxi Zhongjin Mineral Exploration Tools Co., Ltd website:http://www.chinazjtk.com/
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    China Underground Drill Rigs, Core Drill Rigs, Engineering Drill Rigs Suppliers, Manufacturers, Factory - ZHONGJIN
    Wuxi Zhongjin Mineral Exploration Tools Co., Ltd.: Welcome to buy the best underground drill rigs, core drill rigs, engineering drill rigs, core barrels and overshots, drilling accessories for sale here from professional manufacturers and suppliers in China. Our factory offers high quality products made in China with competitive price. Please feel free to contact us for custom service.
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  • Hybrid Solar Inverter Pricelist Hybrid inverter are highly quality inverter which can convert solar energy to AC energy, and store energy into battery.The inverter can be used to optimize self consumption, store in the battery or feed into public grid.It can supply a battery ready option for users who want to obtain a complete system of energy storage solution.The inverter can be used to optimize self consumption, store in the battery or feed into public grid. 1. 銆怚ntelligent Monitoring銆慞rovide real-time response and remote trouble shooting;Remote configuration and update 2. 銆怘igh Yield銆慚ax Efficiency 97.3%, Max. Charge and Discharge Current 120A. Reasonable energy control to increase the proportion of spontaneous use 3. 銆怘igh Reliability銆慦ith BMS System to ensure high battery life and natural cooling design 4. 銆怢ow Noise銆慣he noise is<35dB, it will not affect the rest and sleep of users 5. 銆怚P65 Rating銆慣he storage inverter protection class is IP65 and can be mounted indoors or outdoors 6. 銆怚nstallation銆慍an be connected in parallel for max. 10pcs. Hybrid inverter system connection diagram Note: the BMS COM cable is only for lithium battery Application Grid-Tied Solar System Off-Grid Solar System Hybrid Solar System Product Specification ModelOST 4600HB-60OST 4600HB-120OST 5000HB-60OST 5000HB-120OST 6000HB-60OST 6000HB-120 Efficiency Max.ef铿乧iency (PV to AC)97.3% Max.ef铿乧iency (BAT to AC)94.0% Input (PV) MAX PVPower9000W Max PV voltage550V Max input current (input A/input B)15A/15A Max short current (input A/input B)20A/20A Start operating voltage90V MPPT voltage range70V-520V No.of MPPT trackers2 String per MPP tracker1 Input (BAT) Compatible battery typeLithium-ion / Lead-acid Nominal battery voltage48V Battery voltage range40V-60V Max. charge/discharge current60A/60A120A/120A60A/60A120A/120A60A/60A120A/120A Max. charge/discharge power3000W/3000W5000W/5000W3000W/3000W5000W/5000W3000W/3000W6000W/6000W Lithium battery charge curveSelf-adaption to BMS Output (Grid) Nominal AC output power4600W4600W5000W5000W6000W6000W Max. AC output apparent power4600VA4600VA5500VA5500VA6000VA6000VA Max.AC output power (PF=1)4600W4600W5500W5500W6000W6000W Max. AC output current22A22A25A25A27.2A27.2A Rated AC voltage220V AC voltage range150V-300V (Adjustable) Output (Back up) Nominal output voltage230V Nominal output frequency50Hz/ 60Hz Nominal output power3000W4600W3000W5000W3000W6000W Nominal output current13A20A13A21.7A13A26A Transfessr time10ms (typ) / 20ms (max) THDV<3% @100% R Load General Max. operation altitude4000m Noise emission<35dB Ingress protection degreeIP65 Operating temperature range-25鈩儈60鈩?/p> Relative humidity0~100% Cooling conceptNatural Cooling MountingWall bracket Dimensions (W*H*D)515mm*485mm*175mm Weight20Kg25Kg20Kg25Kg20Kg25Kg PV connection wayMC4/H4 Battery connection wayDedicated DC connector AC connection way (grid & back up)Dedicated AC connector HMI & COM DisplayLED+APP Communication interfaceRS485/CAN (for BMS), RS485, USB, DRM/RS485 (for Meter), Optional: WiFi/GPRS/LAN Certification GridIEC 61000-1/2/3/4, G99, NRS 097, EN 50549-1, IEC 61727/62116, CEI 021 SafetyIEC 62109-1/2 Warranty5 Years /10 Years (Optional) FAQ Q:What鈥檚 the lead time? A:Normally it takes around 6 weeks after order confirmation. Q:What鈥檚 the payment term? A:30% TT in advance, balance against copy of B/L, or L/C at sight. Q: What鈥檚 the warranty term? A:Normally 5 Years Q:How to get sample to check before placing order? A:Onesto offers free samples within specified value. The express cost to be borne by the customer. Q:Could you print our own logo? A:Yes, Our company is available for OEMHybrid Solar Inverter Pricelist website:http://www.onestoenergy.com/solar-inverter/hybrid-solar-inverter/
    Hybrid Solar Inverter Pricelist Hybrid inverter are highly quality inverter which can convert solar energy to AC energy, and store energy into battery.The inverter can be used to optimize self consumption, store in the battery or feed into public grid.It can supply a battery ready option for users who want to obtain a complete system of energy storage solution.The inverter can be used to optimize self consumption, store in the battery or feed into public grid. 1. 銆怚ntelligent Monitoring銆慞rovide real-time response and remote trouble shooting;Remote configuration and update 2. 銆怘igh Yield銆慚ax Efficiency 97.3%, Max. Charge and Discharge Current 120A. Reasonable energy control to increase the proportion of spontaneous use 3. 銆怘igh Reliability銆慦ith BMS System to ensure high battery life and natural cooling design 4. 銆怢ow Noise銆慣he noise is<35dB, it will not affect the rest and sleep of users 5. 銆怚P65 Rating銆慣he storage inverter protection class is IP65 and can be mounted indoors or outdoors 6. 銆怚nstallation銆慍an be connected in parallel for max. 10pcs. Hybrid inverter system connection diagram Note: the BMS COM cable is only for lithium battery Application Grid-Tied Solar System Off-Grid Solar System Hybrid Solar System Product Specification ModelOST 4600HB-60OST 4600HB-120OST 5000HB-60OST 5000HB-120OST 6000HB-60OST 6000HB-120 Efficiency Max.ef铿乧iency (PV to AC)97.3% Max.ef铿乧iency (BAT to AC)94.0% Input (PV) MAX PVPower9000W Max PV voltage550V Max input current (input A/input B)15A/15A Max short current (input A/input B)20A/20A Start operating voltage90V MPPT voltage range70V-520V No.of MPPT trackers2 String per MPP tracker1 Input (BAT) Compatible battery typeLithium-ion / Lead-acid Nominal battery voltage48V Battery voltage range40V-60V Max. charge/discharge current60A/60A120A/120A60A/60A120A/120A60A/60A120A/120A Max. charge/discharge power3000W/3000W5000W/5000W3000W/3000W5000W/5000W3000W/3000W6000W/6000W Lithium battery charge curveSelf-adaption to BMS Output (Grid) Nominal AC output power4600W4600W5000W5000W6000W6000W Max. AC output apparent power4600VA4600VA5500VA5500VA6000VA6000VA Max.AC output power (PF=1)4600W4600W5500W5500W6000W6000W Max. AC output current22A22A25A25A27.2A27.2A Rated AC voltage220V AC voltage range150V-300V (Adjustable) Output (Back up) Nominal output voltage230V Nominal output frequency50Hz/ 60Hz Nominal output power3000W4600W3000W5000W3000W6000W Nominal output current13A20A13A21.7A13A26A Transfessr time10ms (typ) / 20ms (max) THDV<3% @100% R Load General Max. operation altitude4000m Noise emission<35dB Ingress protection degreeIP65 Operating temperature range-25鈩儈60鈩?/p> Relative humidity0~100% Cooling conceptNatural Cooling MountingWall bracket Dimensions (W*H*D)515mm*485mm*175mm Weight20Kg25Kg20Kg25Kg20Kg25Kg PV connection wayMC4/H4 Battery connection wayDedicated DC connector AC connection way (grid & back up)Dedicated AC connector HMI & COM DisplayLED+APP Communication interfaceRS485/CAN (for BMS), RS485, USB, DRM/RS485 (for Meter), Optional: WiFi/GPRS/LAN Certification GridIEC 61000-1/2/3/4, G99, NRS 097, EN 50549-1, IEC 61727/62116, CEI 021 SafetyIEC 62109-1/2 Warranty5 Years /10 Years (Optional) FAQ Q:What鈥檚 the lead time? A:Normally it takes around 6 weeks after order confirmation. Q:What鈥檚 the payment term? A:30% TT in advance, balance against copy of B/L, or L/C at sight. Q: What鈥檚 the warranty term? A:Normally 5 Years Q:How to get sample to check before placing order? A:Onesto offers free samples within specified value. The express cost to be borne by the customer. Q:Could you print our own logo? A:Yes, Our company is available for OEMHybrid Solar Inverter Pricelist website:http://www.onestoenergy.com/solar-inverter/hybrid-solar-inverter/
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    Hybrid Solar Inverter Manufacturers Suppliers Factory | ONESTO
    ONESTO is one of the most professional hybrid solar inverter manufacturers and suppliers in China. Please rest assured to wholesale high quality hybrid solar inverter for sale here and get pricelist from our factory. For customized service, contact us now.
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  • Paper Drum Machine manufacturers Product Description The Parallel Paper Tube Winder is specially designed for large diameter parallel paper tubes. Secondly, it achieves a high level of automation with the help of digital panel and PLC system, which can save users' time and money. What's more, our products are often used to make fiber drums, fiber tubes, aluminum foil, etc. Finally, our products are inexpensive and good quality, which is loved by our customers. Feature The discharge frame of Parallel Paper Tube Winder can be hydraulic shaftless discharge frame or pneumatic discharge frame. Secondly, the rotation of our mandrel is driven by servo motor, which makes our products more stable and very high precision. Finally, our products also have the functions of auto-loading, auto-gluing, auto-reeling and auto-unloading. Machine Technical Specification: ModelZPJ-1300ZPJ-1600 Tube聽lengthMax.1300mmMax.600mm Tube聽diameter280-650mm280-650mm Drum thickness1~30mm1~30mm Efficiency200-500pcs200-500pcs Cutting wayAutomatic cuttingAutomatic cutting Tube unload聽typeAutomaticAutomatic Gluing loadAutomaticAutomatic Motor Power6KW6KW Big parallel paper tube making machine main devices: The machine is consisted of paper unwinding device, main shelf device, paper gluing device, paper pressing device, cutting device and tube winding device. Paper feeding device: adopts pneumatic brake to automatically lift paper. 1. Main frame device: steel welding frame is adopted. 2. Gluing device: including gluing container, glue roller, and scraping parts. 3. Paper pressing device: The rubber roller and the grooved steel roller are used to press the paper. 4. Cutting device: automatic cutting. 5. Rolling tube device: easy to discharge, and there are supports on both sides of the rolling tube. 6. The automatic discharge function of the paper tube is installed. The discharge mechanism is mainly composed of a discharge shaft, a support block, a cylinder, a base, and a left and right moving seat. The automatic deviation correction device is composed of a photoelectric head, a deviation correction guide roller, a left and right bracket, a deviation correction moving plate, a ball nut and a screw, a synchronous motor, and a left and right limit switch.Paper Drum Machine manufacturers website:http://www.dcpapertubemachines.com/paper-packaging-machine/paper-drum-machine/
    Paper Drum Machine manufacturers Product Description The Parallel Paper Tube Winder is specially designed for large diameter parallel paper tubes. Secondly, it achieves a high level of automation with the help of digital panel and PLC system, which can save users' time and money. What's more, our products are often used to make fiber drums, fiber tubes, aluminum foil, etc. Finally, our products are inexpensive and good quality, which is loved by our customers. Feature The discharge frame of Parallel Paper Tube Winder can be hydraulic shaftless discharge frame or pneumatic discharge frame. Secondly, the rotation of our mandrel is driven by servo motor, which makes our products more stable and very high precision. Finally, our products also have the functions of auto-loading, auto-gluing, auto-reeling and auto-unloading. Machine Technical Specification: ModelZPJ-1300ZPJ-1600 Tube聽lengthMax.1300mmMax.600mm Tube聽diameter280-650mm280-650mm Drum thickness1~30mm1~30mm Efficiency200-500pcs200-500pcs Cutting wayAutomatic cuttingAutomatic cutting Tube unload聽typeAutomaticAutomatic Gluing loadAutomaticAutomatic Motor Power6KW6KW Big parallel paper tube making machine main devices: The machine is consisted of paper unwinding device, main shelf device, paper gluing device, paper pressing device, cutting device and tube winding device. Paper feeding device: adopts pneumatic brake to automatically lift paper. 1. Main frame device: steel welding frame is adopted. 2. Gluing device: including gluing container, glue roller, and scraping parts. 3. Paper pressing device: The rubber roller and the grooved steel roller are used to press the paper. 4. Cutting device: automatic cutting. 5. Rolling tube device: easy to discharge, and there are supports on both sides of the rolling tube. 6. The automatic discharge function of the paper tube is installed. The discharge mechanism is mainly composed of a discharge shaft, a support block, a cylinder, a base, and a left and right moving seat. The automatic deviation correction device is composed of a photoelectric head, a deviation correction guide roller, a left and right bracket, a deviation correction moving plate, a ball nut and a screw, a synchronous motor, and a left and right limit switch.Paper Drum Machine manufacturers website:http://www.dcpapertubemachines.com/paper-packaging-machine/paper-drum-machine/
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    Paper Drum Machine Manufacturers Factory in China - CHENGDONG
    Founded in 1993, CHENGDONG is one of the most professional paper drum machine manufacturers and suppliers in China. Our factory offers high quality paper drum machine made in China with competitive price. Welcome to contact us for wholesale service.
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