Tankless Instant Gas Water Heater JW-QS1

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 Pieces pc

Supply Capability:: 50000 Pieces per Month pc/month

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Detailed Product Description

1/ quality steel used for housing & case.

2/ cooper heat exchanger

3/ with various safety device

Features:

Model: JW-QS1 Series

* quality steel used for housing & case.

* environment-friendly coating finish if any.

* pure copper heat exchanger

* sealed burner box for high heat efficiency

* low or zero water pressure start-up

* with various safety device

* various coating color for panel optional

Specification:

Model	JW-QS1-12	JW-QS1-16	JW-QS1-20	JW-QS1-24	JW-QS1-32	JW-QS1-40
Capacity (L)	6	8	10	12	16	20
Exhaust type	forced exhaust	forced exhaust	forced exhaust	forced exhaust	forced exhaust	forced exhaust
Burner type	3 line harmonica	4 line harmonica	13 line T-shape	15 line T-shape	16 line T-shape	18 line T-shape
Ignition	automatic	automatic	automatic	automatic	automatic	automatic
Applicable water pressure (MPa)	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8	0.02~0.8
Gas type	LPG(Liquefied Petroleum Gas) / NG(Natural gas)
Gas pressure	LPG: 2800Pa NG: 1274Pa & 2000Pa
Product size (mm)	440x290x120	520x320x140	590x330x140	620x330x180	650x420x180	700x420x180
Packing size (mm)	560x360x180	640x375x200	710x400x200	750x390x240	770x480x240	820x480x240
N.W. / G.W. (kg)	4/5	7/8	9/10.5	9.5/11	13.5/15.5	18/20

Our advantage:

1/ make products in factory ourselves.

2/ strong manufacturing capacity for OEM service.

3/ flexible production for tailor-made service to client.

Our service:

1/ one year warranty.

2/ 1% spare parts for after service.

3/ continuous support from engineer department.

Q: What's the difference in shape and function of the shaper cutter, shaving cutter and gear hob?: The shaper cutter is like a straight gear, and the front face of the cutter is concave taper in order to form the rake angle, and the machining accuracy of the gear is higher (than hobbing).The shaving cutter is like a helical gear, and the cutter teeth are arranged in a longitudinal groove, which is used for fine machining after slotting and hobbing.The hobbing cutter is shaped like a worm and is arranged along the axial direction, and belongs to the rack type gear cutter.

Q: Grinding wheel for grinding hob: White corundum is not good, we've also used it, the efficiency is low, the old want to repair the wheel, now back to the jade white jade et al than use a lot.

Q: What are the main causes of hob breaking?: (1) helical rolling wheel indexing hanging off, (Y38-1, Y3150) indexing hanging round off, the table does not turn, turn the cutter knife, broken teeth. The differential gear shedding (Y3150E, Y3180H) differential gear off the bench or turn. (2) head screw clearance large, in the processing process, the knife suddenly sank (inverse milling often), caused by the amount of feed is too large, not only from the sometimes broken tooth hob groove crack, the entire knife scrap (3) processing the material hardness is too high or too soft, also to the broken tooth cutter

Q: M6-12 recommends the use of what their hob grinding, grinding wheel, a grinding method of hob can be good recommendation, currently with 60 of white corundum grinding wheel M12 hob grinding too slowly, a grinding wheel can grind a row of hob a tooth to wear 2-3 hours, but also easy to knife sub fire! Asks God to help solve!!!: You can choose PA or SA grinding wheel, particle size 46-60#, hardness J-K, you can.

Q: Known gear hobbing machine speed, knife, and hob modulus, the number of teeth of the workpiece, the processing thickness (Chi Kuan), how to calculate the processing hours?: It is very difficult, not numerical control, ordinary hobbing machine can only work experience, feel how much time a workpiece processing

Q: What does "hob" mean when cooking?: Correction: hob shall be hob block.Main points of hob block operation:The raw material is hob block roll up into pieces, to cut hob block must grasp three points; one is straight knife, two is the raw material and the knife angle between 45 to 60 degrees (about 70, three dollars is scissors) is every slice have to scroll a raw material, the rolling amplitude is determined you want to process massive size, is generally 1/3 weeks rolling material.Block cutting method of hob:1, a first bevel knife.2. Turn the section face up.3, in the 1/2 section (according to the block size and decided to cut the oblique).4, and then the last section of the plane turned upward.5, or about 1/2 oblique. This keeps turning over everything and turning everything over.

Q: I produce high speed hob, M3, double headed, pressure angle 20 degrees, machined gear Z11 and Z9 gear. The normal line changes momentum 0.06~0.1 and does not dare to shave teeth. I analyze the reasons: long hob processing, less gear, gear inappropriate: in theory inappropriate. The machining tolerance is accumulated; the vibration is large; the accuracy of the hob; the accuracy of the gear hobbing machine. So far, I haven't solved it completely. But I told the gear factory to use the same hob to gear the Z43 gear, which is obviously much better. I hope you can correct me.: The accuracy of the rotary table of the gear hobbing machine is large, or the deviation of the concentricity between the small column head and the worktable is too large. The first step is to check the gear hobbing machine workbench precision spindle work station is equipped with a standard, do not try to play the top hat, mandrel, preferably with micrometer, if the mandrel in the beating of a point always hit the minimum (minimum can reach 0.003), always in 0.015~0.03 between swing dancing. Sometimes more than 0.03, the surface of the worktable shell and the surface of the cone must be overhauled. If the core shaft can be positive, it is on the top of the top, a core shaft on the two beat, normal upper and lower deviation but over 0.015, such as the top is not so, that column with the table concentricity deviation is too large, to correct the small column. That is, double headed cutter processing, less gear, gear, public wire, there is momentum, but there is no landlord said so big ah. No more than 0.03. It is also important to check the accuracy of hobbing machines and gear blanks.

Q: Recently in the shield machine cutter rock breaking simulation, the stress on body feels wrong, ask the shield machine general disc stress on the hob is, what about the magnitude is hundreds of MPa or greater?: 30MPa, the answer is complete.

Q: Gleason hob material marked as: G30 what material?: Durability of the tool depends on the tool material and heat treatment hardness, different processing conditions, the selected material is different, the price tool of different materials are not the same, as consumers should have the right to know the Gleason, G30, G50 in terms of customers do not know what material, how to know and price.

Q: When the gear hobbing machine, gear hobbing cutting depth increases, the cutter shaft transmission box a gala Gala of the strange sound, returned from the new start roll disappears, each gear case, open the inspection found no gear hob shaft breakage, pressure bearing clearance, from the new installation and debugging after the situation remains the same, this is what's the matter?: This situation is generally caused by heavy load, please focus on the following conditions:1, the transmission shaft transmission less oil, to be added. 2, hob wear a large amount, or hob grinding is not correct, causing chip power increases, sharpening. 3, eat too much, over load rolling gear machine, adjust the cutting depth to the right. 4, whether the hardness of the workpiece material is too high?.

With many years' experience in this field, we set up independent R & D center, testing centers, quality control centers inside factory ourselves. We carry out ISO9001 system in the company, all staffs constantly follow advanced managing & strict quality control process, quality-oriented is a constant guidance for our work here. We organize an experienced team in sales department, to ensure customers a prompt & efficient response, we are at customer's service anytime.

1. Manufacturer Overview

Location	Guangdong,China
Year Established	2008
Annual Output Value
Main Markets	South America Eastern Europe Mid East Eastern Asia South Asia
Company Certifications	ISO 9001:2000

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Shunde
Export Percentage
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	1,000-3,000 square meters
No. of Production Lines	5
Contract Manufacturing	OEM Service Offered
Product Price Range