1.About E.J.S.EJS is a newly created brand name for Export business
with manufacturing experiences since 1992.Our mission is to make
the screw barrel import work Easier
with Joy and bigger Success for our
customers internationally.2. Product Details1) Base
materialsOur common materials include 42CrMo(4140Steel),
38CrMoAlA(1.8509), 31CrMoV9(1.8519), 34CrAlNi7(1.8550), 40Cr,
45Steel,SS304, SS416, SKD11, SKD61,. Other materials are possible,
please contact us for further details.2) Surface
treatmentsIncluding: quenching & tempering, nitriding, hard
chrome-plated, bimetallic alloy coating, through hardened.
Bimetallic BarrelsAlloy TypeEJS01 AlloyEJS02 AlloyEJS03 AlloyEJS04
AlloyAlloy ComponentsFe+Ni+Cr+B(Fe:65, Ni:14, Cr8,
B:3.5)Ni+Cr+Co+BNi+Cr+Co+V+BNi+Wc+Cr+B(Ni:50, Wc:15~35,Cr:6~8,
B:2.5~3.2)Wearing Resistance★★★★★★★★★★★★Corrosion
Resistance★★★★★★★★★★★Alloy
Thickness2-3mm1.5~2mm1.5~2mm1.5~2mmHardnessHRC 58~65HRC 50~58HRC
55~60HRC 55~65Temperature Range≤400≤450≤450≤600Coefficient
ThermalRT~250ºC11.0x10-611.0x10-611.5x10-611.0x10-6Expansion(/ºC)RT~400ºC11.4x10-611.4x10-612.4x10-612x10-6Range
of Workable Length700mm~3000mm/pieceBase Steel Vastly Used40Cr,
42CrMoMark in the
list: ★★★★ Excellent; ★★★ Very
Good; ★★Good Bimetallic ScrewsSuitable forSingle Screw,
Twin Parallel Screw, Twin Conical ScrewAlloy TypeNi60Colmonoy
56Colmonoy 83Alloy ComponentsNi+Cr+Fe+Si(Ni:65, Cr:17, Fe:15,
Si:5)Ni+Cr+Si+Fe(Ni: 68, Cr:18, Si:5, Fe:5)Ni+Wc+Cr+C(Ni:40, Wc:34,
Cr:20, C:2)Anti-Wearing Level★★★★★★★★★★Anti-Corrosion
Level★★★★★★★★★★★★Alloy Thickness1~1.5mm1~1.5mm1~1.5mmHardnessHRC
56~62HRC 46~61HRC 43~48Applied Glass FiberUnder
10% Range of Workable LengthAny length neededBase Steel
Vastly Used38CrMoAl(1.8509), 34CrAlNi7(1.8550),
31CrMoV9(1.8519)Mark in the
list: ★★★★ Excellent; ★★★ Very
Good; ★★Good3. E.J.S Workshop4. EJS Bimetallic
Machine1) New PTA welding mahine for screws:
2) Centrifugal casting machine for barrels
5. Quality InspectionWe take only first-class steel
and check every production procedure to ensure every dimension is
produced precisely. A final complete inspection will be
executed before dispatch.6. PackagingWe use strong plywood or
wooden case for all our products7. Our Advantages1) Quality
always comes first. Our experienced workers pay attention to every
tiny procedure during the production and inspection, to ensure the
precision of every dimension. 2) Service makes us
outstanding. Our sales people are trained on the products
every day. They are always ready to answer your questions and offer
the best solutions in fluent English at any time.3) Provide
an easier working way. With 6 years export experience, we E.J.S
offer before-sales, prouction update, after-sales one
stop service, which gives all our customers an easier way to
work with us. We welcome you to visit our factory at any
time.8. Our marketThrough years of developing, we have
happy customers all over the world with main market in
Europe, South America, Asia, Middle East, ect.We look forward to
working with you now and forever! /* March 10, 2023 17:59:20
*/!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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