Heat shrink fiber optic splice protection sleeve is a specially designed optical fiber connection protective element consisting of fiber shrink tube, hot melt tube and reinforced stainless steel rod.
When the optical fiber is connected by the fusion splicer (Splicing Machine), will strip the cable outer sheath and protective layer which make the fusion point vulnerable to external influences and reduce the mechanical strength accordingly. Fusion-protection sleeves used with a degree of rigidity can provide vital protection at the fused juncture between two fusion spliced optical fibers and prevents the spliced area from bending or flexing, the sealing structure makes the connection good resistant to temperature and humidity.
The fiber splice sleeves are widely used in fiber optic telecommunication equipment like fiber optic splice closure, cable termination box, optical distribution frame,cabinets, optical distribution box, etc.
Fiber Sleeve Features
- Operating temperature: – 45~100 ℃; Shrinkage temperature range: 110 ℃.
- REACH & RoHS compliant.
- The optical conductivity of the optical fiber is maintained.
- Protect the connection points and improve the mechanical strength.
- Transparent case makes the connection of optical fiber clear at a glance.
- Simple operation, reducing the risk of damage to optical fiber during installation.
- The sealing structure makes the connection have good temperature and humidity resistance.
Production Process
Fiber optic sleeves are strictly produced and controlled by fiber networking industry standards and ISO management system,100% qualified in good condition then can make shipment.
1. Prepare raw materials: heat shrink tube, hot melting tube, stainless steel and controlled by industry standards and ISO management system. 100% check and confirm in good condition before delivery.
2. Steel cutting, grinding, polishing, cleaning and drying
3. Assembly steel needle, tubes by automatic machines, forming and chamfering
4. Quality check, sub-packaging, labeling, final packaging and warehousing
Fiber Optic Splice Sleeve Types
Yingda offer many types of sleeve: single fiber sleeve, ribbon fiber sleeve, drop cable sleeve, micro fiber sleeve, etc. The structure are a little difference, but the same function.
Type 1: Single Fiber Splice sleeve
Single fiber splice sleeves are mainly used for bare fiber 250um, and the popular length is 40mm 45mm 60mm. But Yingda can do wide range length from 10mm to 61mm. The strength member is stainless steel, it can be 1pc or 2pcs, the most popular is 1 steel needle, the diameter Yingda can do is from 0.5mm to 1.5mm. According to the diameter of steel, it can divide into different models, like 40*1.0mm, 45*1.0mm, 60*1.0mm. Download our catalogue for more information.
Type 2: Ribbon Fiber Splice Sleeve
Ribbon fibers heat shrinkable protection sleeve are widely used to protect the ribbon fibers like 6 cores, 8 cores, 12 cores. The strength member internal is ceramic rods instead of stainless steel, which ensure long lasting and good protection for ribbon optical fibers. It can be single ceramic rod or dual ceramic rods. The cost and performance differs according to customer requirements. Also welcome customize according to customer request.
Type 3: Drop Cable Splice Sleeve
Drop cable splice sleeve mostly used is 60mm length, it can use 1piece stainless steel or 2stainless steel for strength member. Both type are popular, which is widely used in FTTH network direct fusion, which is High temperature resistance and long service life. Both ends are chamfered and sealed, and the steel needle is not easy to fall off.
Fiber Sleeve Package Information
PP Plastic Bag
50pcs/bag, or 100pcs/bag, Stickers can be neutral or customize with customer logo, part no, manufacture date, quantity, description, etc. OEM ODM welcome
PP Plastic Bag With Numbers
12pcs/bag, 24pcs/bag, mostly used in optical terminal box, splice closure, distribution box, or cabinets, 12cores as a sub-unit, then number marks 1 2 3 …12 will pack together.
Frequently Asked Questions
What is the lead time of fiber sleeve?
Yingda is large capacity, full production every day. If standard bare fiber splice protector, only final pacakge with stickers, 1 – 2days is ok. If mass production, will do about 5 – 10days according to the bulk order quantity.
What size of protection sleeve used for single fiber?
The popular length is 40mm, 45mm and 60mm, if customer not specify, will configurate 1.0mm steel rods. If used in compact size fiber optic box or splice closures, suggest to use 40mm, if enough space, suggest to use 45mm or 60mm for better protection.
Can do colored fiber optic splice protector?
Of course. Colors can be customize if meet MOQ. Please talk with our sales representatives for details.
Can you do full heat shrink sleeve?
Certainly yes, we make and export a lot of full shrink sleeve every month, and have deep experience in this field.
Full heat shrinkable tube, also known as pre-shrink tube, has the following characteristics and advantages compared with the conventional side sealing heat shrinkable tube. After fully shrink, the heat shrinkable tube component Fully integrated, closely integrated, to prevent parts separating, good appearance.
Side sealing shrink in the fusion process will have some problem like bubbles, uneven shrinkage and other problems which cause fiber loss and affect optical transmission! Full shrinkage is effective to avoid this problem;
At present the full shrink tube can be made as follow specification, after shrinking diameter 3.0, 2.6, 2.5, 2.4, 2.0,etc. Standard and micro heat shrinkable tube temporarily unable to complete contraction; the length can be customized according to customer requirements
Can you custom logo on splice sleeve?
Yes, we do. Please share us your original file, we will do accordingly. It may add a little cost on the product itself, please kindly understand and support.
Full shrink vs side shrink, what are the difference ?
The most difference between the full sealing type and common type (side seal type) is the processing technology of both end closing.
Full sealing type adopt full range of pre heating shrinkage technical to achieve the seamless between inner and outer of both ends of the tube.The steel needle is fixed in the middle.Much neater and good appearance. Quality is as good as Tyco SMOUV.
Ordinary type adopt the side heat shrinkage, there is a gap between the inner and outer tube of both ends, unattractive.
Can make micro fiber sleeve 25 mm or 15 mm?
Yes, we do. Due to the smaller, the steel size is smaller, and it is hard to do by machines, so the production time will quite depend on the human, so delivery time is much lower than the normal types.
How to control fiber optic sleeve quality?
Under ISO management system, all our products materials and finished products meet ROHS standards. For raw materials, all brand new PE material for the outer tube, EVA material for inner tube, and 201 or 304 for the steel rods. There are factories who make inner tube with PE materials, or the production environmental is not clean, the final products will be non-transparent, or there are many dirty or black spots attached to the product.
Furthermore, our product engineer with more than 15 years production experience, all our products are made by self-developed production equipment, which ensure to adjust and correct various details and errors at any time. Our heat shrink tube cutting end face is very neat, and the inner and outer tubes are basically aligned. Many incisions on the market are uneven, and some inner tubes are longer than the outer tubes, their quality control is very poor.
Before package, will check all items one by one to make sure there is no unqualified sleeve before package.
And we always prepare a certain amount of spare parts for each large order to prevent the client from being lost or make up for the risk that it cannot be supplemented.
How are fiber optic cables spliced together through fiber sleeve?
Fiber sleeve is most of the time used together with the fusion splice machine, after heat shrink the 2 optical fibers by fusion splicer, will put on the sleeve to project the fiber joint place and fix it in the sleeve slots of the tray. Explore more, please visit blog: How To Use The Fiber Splice Protection Sleeves?
What is the needle material of fiber optic sleeve?
The stainless steel of the splice protector are mostly 201 or 304,which is good for long time use without problem. We will explain the difference of both in article: What is difference of stainless steel 201 vs 304?
