Powered by Made-in-China.com
High-Strength 40kN U40b Glass Isolators for Superior Stability
US$2.99-4.99
200 Pieces
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableApplication
High-voltageMaterial
GlassModel NO.
U40BStructure
Suspension InsulatorType
A Type InsulatorUsage
High Voltage Power Transmission, Insulation, Electrical InstallationSize of Bearing Capacity
40KNCertification
ISO9001, IECColor
GreenBrand
JohnsonNet Weight
2.1kgDiameter
178mmHeight
110mmCreepage Distance (L)
185mmMechanical Failing Load
40knTransport Package
Standard Shipping PackageSpecification
900*1100*1100Trademark
Customer SpecifiedOrigin
ChinaHS Code
8546100000Production Capacity
100000Key features
High Mechanical Strength: Features a 40kN mechanical failing load for superior stability in high-voltage applications.
Premium Glass Material: Constructed from high-quality glass to ensure durability and excellent insulation performance.
Certified Quality: Holds ISO9001, IEC, ISO 14001, and OHSAS 18001 certifications for reliable standards.
OEM Customization: Accepts OEM orders for large quantities, allowing for customer logo and design integration.
Fast Response Service: Customer service staff available online to reply to inquiries within 24 hours.
100% Quality Inspection: Every single product undergoes strict testing and 100% function inspection before shipment.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.24h CertifiedTerms of Payment: T/T, LC, D/P, etc.
AI-Powered supplier vetting
SummaryJiangxi Johnson Electric Company manufactures a broad range of electrical insulators and related fittings, with three production lines and 41–50 quality-control staff. It supports extensive customization, including customization from samples and designs, and follows uniform finished-product inspection instructions. However, the supplier reports no certification of management systems, no written procedures for service assessment, corrective actions, complaints, or quality assurance, and no overseas agents, warehouses, showrooms, or in-stock service. Its R&D evidence is limited: one year of R&D engineer experience is reported, with no new products in the past year, no ODM, 3D software design, SDK, or popular-brand OEM capability. Export sales account for 51%–70%, and the supplier has participated in one named offline trade show. Financial records are referenced for 2022–2024, but the provided slices do not establish financial strength.
Supplier typeThe supplier is an electrical-insulator manufacturer offering glass, porcelain, composite polymer insulators, transformer bushings, and end fittings. Its listed combined facilities include molding, drying, glazing, kiln, and related production equipment, supporting classification as a specialized manufacturing supplier.
CertificationsThe supplier reports no certification of supplier management systems. It also reports no written quality-assurance procedures or records, although finished-product inspection instructions are stated to be available and uniformly followed.
After-Sales capabilityThe supplier has no overseas agents or branches, overseas warehouse, showroom, inventory service, or written procedures and records for complaint handling, service assessment, or corrective and preventive actions. It does accept several quotation and payment terms and reports a one-month average lead time in both peak and off-season, but the documented after-sales infrastructure is deficient.
R&D capabilityInnovation evidence is weak: the supplier reports one year of total R&D-engineer experience, no new products in the past year, no 3D software design service, no ODM service, and no available SDK. It does offer several forms of design customization, but this does not establish strong product innovation capability.
Production capacityThe supplier operates three production lines, has 41–50 quality-control staff, and lists facilities covering molding, drying, glazing, kiln, and related processes. It also states that finished products are inspected under instructions that are uniformly followed; however, it reports no in-stock capacity and no valid manufacturing contract with associated subcontractors.
Customization capabilityThe supplier explicitly accepts customer designs and provides full, minor, flexible, sample-based, and design-based customization. This is direct evidence of broad customization capability, although 3D software design services are not provided.
Product Q&A
Q:What are the payment terms?
A:
We accept T/T with a 30% deposit and 70% balance against the copy of B/L, or L/C at sight.
Q:What is the production lead time?
A:
Normally, production takes about 35-40 days.
Q:How are the products packaged?
A:
Small capacity items use cartons, while large capacity items use strong wooden cases for protection or double inner packs in a master carton.
Q:Can you provide Form A or Certificate of Origin?
A:
Yes, we can prepare relevant documents to apply for these certificates from the foreign affairs office or other offices.
Q:Do you accept customer logos?
A:
We only accept OEM orders when the customer places a large quantity order.
Send Inquiry
*To:
Jiangxi Johnson Electric Co., Ltd.
Jiangxi Johnson Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
High Voltage 70kN Glass Suspension Isolator for Optimal Performance
US$4.69-5.69
200 Pieces(MOQ)
High Voltage Glass Isolator U70b for Global Electrical Solutions
US$8.00-9.98
50 Pieces(MOQ)
240kN U240b Earth Wire Disc Glass Isolators for Transmission Line
US$12.89-12.99
1 Piece(MOQ)
High Voltage Toughened Glass Isolator U40b for Congo
US$3.00-5.00
50 Pieces(MOQ)
Premium 20g1 Ceramic Pin Isolators for Superior Electrical Protection
US$1.78-2.39
200 Pieces(MOQ)
3 Isolatuers Ensemble CTV 254 U70b Glass Insulator String Ground-Wires Type Isolator for Algeria
US$3.00-5.00
100 Pieces(MOQ)
Premium Oval Flange Isolators for Superior Noise Control Solutions
US$18.90
1,000 Pieces(MOQ)
Marya Rapid Decontamination Sterile Isolator for High-Turnover Antibiotic Production Suites
US$150,000.00
1 Piece(MOQ)
Sm Series Low Voltage M6 Busbar Support Insulator 16mm High Replace Rich Isolator Busbar for Power Module
US$0.70-0.90
100 Pieces(MOQ)
U40b Toughened Suspension Glass Isolators Ball and Socket Type
US$3.00-5.00
50 Pieces(MOQ)
High Voltage 240kN Suspension Glass Isolator U240b/146 China Factory Direct Price
US$12.98-12.99
1 Piece(MOQ)
Glass Isolators U120b for 220kv High Voltage for Power Line
US$0.99-4.99
50 Pieces(MOQ)
EL Series Electrical Busbar Support Epoxy Resin Isolator for High Voltage Switchgear
Negotiable
1,000 Pieces(MOQ)
Ceramic Pin Isolators for Russia
US$1.80-2.40
50 Pieces(MOQ)
High Voltage Porcelain Ceramic Electrical Electric Pin Post Isolator for SDI37 Systems
US$5.00-8.00
100 Pieces(MOQ)
Marya Rigid-Wall Sterile Isolator for Lyophilized Powder Handling and Stoppering Processes
US$150,000.00
1 Piece(MOQ)
High Voltage Outdoor 11kN Pin Isolator P-11-Y for Nepal, Bhutan, Pakistan and Maldives
US$5.00
10,000 Pieces(MOQ)
Marya Advanced Automated Sterile Isolator for Aseptic Pharmaceutical Filling and Sealing Lines
US$150,000.00
1 Piece(MOQ)
Solid Epoxy Isolator for Power Distribution Box with Perfect Electrical Separation Effect
US$9.00-17.00
100 Pieces(MOQ)



















