CNG Cylinder continuous Heat treatment line/furnace (Hardening-Quenching-Tempering)
Product Features: The line is comprised of three main parts :
1- Hardening furnace
2- Automatic quenching tank
3- Tempering furnace
Capable of charging CNG cylinders in different sizes and weights
Continuous with adjustable motion pace
Gas fired heating system
No direct contact of flame with the surface of treated parts Hardening Furnace
Gas fired heating system Continuous walking beam type
Maximum temperature: 1100°C
With preheating and soaking zones Low surface oxidation
Automatic cylinder charging and discharging tables Automatic Quenching Tank
Automatic immersion and extraction of the cylinders Affording various quenching methods
Equipped with the cooling and heating systems Suitable agitation inside the quenching tank Tempering Furnace
Gas-fired heating system
Continuous movement with conveyor or walking beam systems
Hot air circulation system to reach to the best thermal uniformity
Maximum operating temperature of 750°C
Including preheating and soaking zones with excellent thermal uniformity
No direct flame contact with treated parts | |
| Fuel name | Natural gas |
| Rated combustion power | 1080KW |
| Rated air consumption | about 109Nm3/h |
| The number of burners | 6 (one for each area on the left and right) |
| Temperature control accuracy | ±2ºC |
| Furnace temperature uniformity | ±10°C (holding section) |
| The distance between the steel cylinders in the furnace | 390mm |
| Process time | 70min |
Machine Configuration: PLC-controlled Automation & Monitoring System :
Capabilities of this system are:
Temperature control and display of actual and set temperatures graphs in each zone
Display of burners status
Display of temperature graphs for each zone (Temperature-Time graph)
Data recording such as temperature, pressure, ...
Display of doors status
Display of system motion performance
Display of motor fans mode (On/Off)
Display of PLC operation option (Manual/Automatic)
Alarming in cases of air pressure drop, gas pressure?drop/rise, temperature rise in each zone, burner turn off and PLC malfunction We can supply CNG Cylinder continuous W.B type Heat treatment line (Hardening-Quenching-Tempering) from Capacity 1 T/Hr to 6 T/Hr. The Furnace could be Gas/Electrical fired with charging/discharging facility and complete automatic temp. as well as sequence control. Feature
1.Three shifts per day, one shift is 8 hours. Working days will be 250 in one year.
2.Production rate: 60pieces /h, or design as your needs.
3.Hardening Furnace Rated Temperature: ≤950ºC, or design as your needs.
4.Heating Zone: 6zones (pre heating: 1 zone, heating: 4 zones, soaking: 1 zone),temperature of each zone is separately controlled.
5.Tempering Furnace Rated Temperature: ≤680ºC , or design as your needs.
Electric parts list | Item | Brand |
| 1.PLC | Lincoin |
| 2.Transducer | Lincoin |
| 3.Touch screen | Proface |
| 4.Intermediate relay | Omron |
| 5.Photoelectric sensor | Omron |
| 6.Button | Schneidre |
| 7.Air cylinder | AirTAC |
| 8.Bearing | NSK |
Our Advantages: 1. Are you facing high cost of daily GAS Use? Our normalizing furnace has advanced control, energy saving, and imported main components.
The heating temperature is uniform, the operation is stable, and the service life is long.
The furnace is equipped with a circulating fan to make the atmosphere in the furnace more uniform and the hardness of the processed parts more uniform.
2. Do you need automation with cylinder production? We can make not only the furnace heating machinery but also the whole production line from beginning to the end. With full automation and robot arms, to ensure the least people in your production line.
3.Do you want to get perfect heating quality? Our heating machines are equipped with the laser and video tracking during whole welding progress, you can see the welding progress clearly, so that the heating torch can be tracked in the center of welding area, the tolerance can be controlled within +-2% for all directions. Thus the heating quality can be guaranteed.
Using in Client's Factory Our Factory
Wuxi Longterm Machinery Technologies Co.,Ltd. specializes in CNG/LPG cylinder machinery with 30 years' background, supplying the better machine to help our customers gain more profits is the motivation to let us move forward all the time, the experienced technicians and the well-trained sales are the guarantee for each project, whatever the turnkey project or the existing plant upgrade project, we provide the pro-support of each aspect to serve our customers well all the time. Thus far, our machine is sold to US, Brazil, Turkey, Argentina, Thailand, Vietnam, Kenya, Tunisia, Nigeria, Bangladesh, Philippines, Uganda, Sudan, Lebanon, Ecuador, among of them are the well-known CNG&LPG cylinder manufacturers in the world, such as Manchester tank from US (Indian branch factory), TPA from Vietnam, Aygaz from Turkey, MBG from Tunisia, Cylinder works from Kenya,Ferrotechsteel from Philippines, BM Energy from Bangladesh. Our machine helps them achieve an obvious improvement on saving the manpower and increasing the productivity. Some pictures of our exhibition before 2020. We will travel to Europe, Southern East Asia, South Amercia, North America, Africa every year.
FAQ Q: What size of CNG cylinder your machine can produce? A: 140mm, 180mm, 232mm, 267mm, 317mm, 356mm, 406mm all size cylinder for cooking and other size according customers' requirement. Q: Can you design machines according CNG cylinder technical drawing? A: Sure, please send your technical drawing to us. Q: What are the benefits to choose your machines? A: Our machines are strong and reliable for long term industrial manufacturing 1.how to purchase? Please describe the workpiece details to us, like dimension and the heating temperature required etc, we will make out a appropriate heating system and equipment installation proposal to comply with your required. 2.supporting service We will offer the whole plant design proposal freely before place order. We are welcome customer visiting the coating line onsite anytime. We will prepare the detailed technology proposal after get approval between customer and manufacturer. Further we will share information about paint and dedust etc to you. 3.payment term The stock & small and middle-sized machine & large equipment & whole heating system deposit by30%, the qualified machine before shipping or against copy of B/L should pay 70% .Actually the payment term can be negotiated according to different situation. 4.Delivery time 3-4 monthes 5.package The export shipment packing would be customized fumigation-free wooden pallet or wooden box. 6.shipping Customer can use their own logistic. Otherwise, we will use our long-term cooperation logistic to conduct transport including loading.The export shipment normally by sea. 7. after-sales service The main parts of coating system warranty 1 year.Other parts damaged by people or consumable spare parts out of warranty.We are offering full life maintain service and 24 hours online service. The overseas project install charge or occurring related fee should be bear by customer. We need to know following information to quote you correct machines: 1.Technical Drawing of the cylinders you want to make? 2.What size of cylinder you want to produce?(such as 356mm, 100L, CNG-1) 3.What diameter and thickness of the cylinder you want to make? 4.Are you new in this area or you already have some machines in the workshop? 5.Capacity you require, i.e. how many pieces and sizes you want to make per day? 
