Following are a number of the generally used 201 Stainless Steel cartridge heaters, please click the size to go to the proper specification page. Also, the heaters could be culture for different sizes, energy and voltage, if you need, please contact with us freely. 6mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm40-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 7mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 8mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 8 Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 9mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500m If you need more size,please link right here to find:Tube Dia. 6-9mmTube Dia. 9 Dia. 12 Dia. 17-25mm Cartridge Heating Element 220V/110V/380V Single Head Heater Pipe 30W/40W/50W 6x25mm/28mm/30mm/32mm/35mm Tube Size 10pcs/lot Specifications: Product Name: Cartridge HeaterMaterial: 201 Stainless SteelTube Diameter: 6mmTube Length: 25mm/28mm/30mm/32mm/35mmWire Length: 300mm(11")Power: 30W/40W/50W/50W/50WVoltage: 110V/220V/380VPackage: 10pcs/lot 6mm Cartridge Heater Pay attention: Power Allowance -10%~+5%Following are among the generally used 201 Stainless Steel cartridge heaters, please click the dimensions to go to the proper specification page. Also, the heaters can be tradition for various sizes, strength and voltage, when you need, please contact with us freely. 6mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm40-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm 7mm Tube DiameterLength25-35mm38-48mm50-60mm62-75mm80-95mm98-115mm120-135mm140-160mm165-185mm190-220mm225-255mm265-300mm320-360mm380-500mm Shopping Tips: 1: Suitable for abrasives heating. Common Application Industry:Core capturing Machine,packaging machinery,flat vulcanizing machine, and so on spot isn't always relevant to liquid and air heating, non-standard products can touch us for custom. 2. How to choose the correct specifications? 1)Voltage: (110V/220V/380V/12V/24V and so on)2)Wattage: (there is error -10% - +5%)3)Tube Diameter:(The default diameter is a detrimental tolerance. For example:10mm is 9)Tube Length: (The default diameter is +/-2mm)5) High Temperature Line:(Default 300mm) 3. About Non-standard customization Instructions:Please confirm the specific parameters earlier than ordering the customer precipitated the mistake, the corporate would not assist the return. Instructions for use:1. Before use, please measure the power on multimeter. If there's no concern after measured then would be installed. If there isn't any power, please touch with us. The cartridge heaters must be linked with the right wiring method, wiring mistakes can cause slow heating or injury two normal wiring methods of consumers are as follows: SHIPPING NOTICEAll functions from our shop are registered site: 17track/en, PAYMENTVISA,Mastercard,WESTERN UNION,Maestro,Bank Transfer,QIVI WALLET,WebMoney,Boletol,PayPal WARRANTY SERVICEDelivery Time:Ship out within 3-5working daysAll emails is probably answered within 24 hours REFUND or RESENDIf goods no longer obtained or damaged,please cooperate with us to take photos once you get preserve of it, then present us the evidence,we will refund or resend a brand new one to you,thanks FEEDBACKAny questions please be at liberty touch with us earlier than you leaving a feedback,we will try the finest that can assist you clear up it Immediately.