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About SOSHH® — Polyurethane Flexible Connector Manufacturer
SOSHH® is the dedicated industrial flexible connector brand of Zhejiang Jingzhen Environmental Protection Technology Co., Ltd., operating a specialized dust-controlled fabrication facility in Quzhou City, Zhejiang Province. We specialize in the R&D, precision CNC cutting, and high-frequency (HF) welding of food-grade polyether TPU snap-in sleeves, vibratory sifter connectors, and zero-reaction weighing bellows for global bulk material handling.
By replacing traditional clamped canvas and leak-prone rubber chutes, SOSHH® engineered snap-in connectors eliminate powder dusting, isolate vibratory kinematics, and streamline sanitary CIP cleaning across pharmaceutical, food & dairy, battery material, and bulk chemical plants.
Manufacturing Infrastructure & Corporate Entity
Engineering Capabilities & Regulatory Compliance
Specialized Product Solutions by Application
| Application Sector | SOSHH Recommended Solution | Core Technical Advantage |
|---|---|---|
| Pharma & Food Processing | FDA Polyether TPU Snap-In Sleeves | 100% dust-tight; resists daily 80 °C caustic CIP washdowns |
| Loss-in-Weight Feeders | Zero-Force Multi-Convolution Bellows | Eliminates spring effect; preserves micro-dosing load cell accuracy |
| Combustible Dust Zones | PUAS Anti-Static Sleeves (10⁶–10⁹ Ω) | Intrinsic static dissipation meeting IEC 60079-32-2 |
| Vibratory Screeners | HF-Welded Isolated Cuff Sleeves | Shore A 90 (110 kN/m tear); survives >1,000,000 cycles at 25 Hz |
| Corrosive / High-Temp | CNC Machined Virgin PTFE Bellows | Continuous service from -70 °C to +260 °C across pH 0–14 |
Specification Comparison: Traditional Clamps vs. SOSHH Snap-In System
| Engineering Parameter | Traditional Clamped Sleeve | SOSHH Engineered Snap-In System |
|---|---|---|
| Changeover Downtime | 30–60 minutes (requires hand tools) | Under 60 seconds (tool-free push-fit snap) |
| Fatigue Mechanics | Clamp edge pinches wall into sharp tear crease | Isolated cuff pockets redirect clamping loads |
| Operator Sensitivity | Risk of overtightening and cutting new sleeves | Pre-calibrated spring-band tension limits stress |
| Sanitary Cleanability | Crevices under clamps harbor powder fermentation | Continuous mirror-smooth bore (Ra < 0.4 µm) |
| Custom Profiles | Expensive tooling molds and 6-week delays | Zero tooling charges; CNC cut and HF welded to millimeter |
Frequently Asked Questions (FAQ) — Factory, Quality & Procurement
Q1: Is SOSHH a manufacturer or a trading company?
A: Factory-direct manufacturer. SOSHH® is the industrial brand of Zhejiang Jingzhen Environmental Protection Technology Co., Ltd., with in-house CNC cutting, high-frequency welding, and dimensional inspection inside our Quzhou facility.
Q2: Where is SOSHH located?
A: Quzhou City, Zhejiang Province, China — No. 82, Kengtou Village, Dazhou Town, Qujiang District.
Q3: Are your flexible connectors FDA certified?
A: The FDA does not issue certificates for finished elastomeric articles. SOSHH sleeves are compliant with FDA 21 CFR 177.2600, verified by independent migration testing under Report Reference TQT4821B36E, backed by official written declarations of compliance.
Q4: Can you manufacture custom sizes and irregular shapes?
A: Yes. Diameters from Ø102 mm to Ø804 mm, as well as square-to-round hoppers, eccentric cones, and offset transitional sleeves, are fabricated to exact millimeter dimensions with zero mold or tooling fees.
Q5: What is your minimum order quantity (MOQ)?
A: We support flexible procurement: our MOQ is 1 piece for engineering prototype testing and trial evaluation. Standard production batch runs typically start from 5 pieces per SKU.
Q6: What is your evaluation sample policy?
A: Standard evaluation samples ship via freight collect. The sample fee is 100% credited toward your initial commercial purchase order exceeding $3,000.
Q7: What is your standard production lead time?
A: Standard catalog snap-in sleeves (DN100–DN150) dispatch in approximately 5 business days; DN200–DN250 dispatch in 5–7 business days; extended lengths exceeding 1,000 mm ship in 7 business days; stainless steel (304/316L) weld spigots ship in 7–10 business days.
Q8: Do you supply 2D drawings and 3D CAD models?
A: Watermarked 2D PDF outline drawings are provided within 24 hours of RFQ receipt. STEP/IGES 3D CAD models are released under standard commercial NDA/NNN for OEM equipment integration.
Q9: Which industries do you serve?
A: Pharmaceutical solid dosage, food and dairy processing, battery materials (cathode/anode), and bulk chemical handling—including ATEX hazardous combustible dust zones.
Q10: Can you support SABER certification for Middle Eastern projects?
A: Yes. Full technical files, factory testing documentation, and commercial paperwork are provided for SABER and G-Mark registration across Saudi Arabia and the GCC region.
Regional Compliance Notes
Verify Our Compliance & Documentation
Partner with SOSHH Engineering
Submit your spigot seating outer diameter (OD), static installation gap (IG), dynamic stroke amplitude, process media, continuous temperature, and pressure/vacuum limits to amin@soshh.com to receive a verified dimensional drawing and quotation within 24 hours.
SGS Certified FDA Compliant Food Safe
SGS certified PU flexible connection supplier
Tested for ATEX Antistatic Requirements
RoHS & REACH Environmental Compliance
ISO 9001:2015 Certified System
FDA 21 CFR 177.2600 Compliance
