Jovvi international
| Delivery Time | 7-14days |
| Payment Terms | T/T |
| Tool Count | 26pcs |
| Packaging Details | Carton&wooden Box |
| Case Material | Hard Plastic |
| Magnetic Susceptibility | < 5 × 10⁻⁶ |
| Supply Ability | 300 Set / Month |
| Material Composition | Ti-6Al-4V |
| Hardness | 38 HRC |
| Size Options | 6", 8" Or Customized |
| Place Of Origin | China |
| Certification | ISO |
| Model Number | 1-cf-7 |
| Brand Name | Jovi |
View Detail Information
Explore similar products
26pcs Non Sparking Non Magnetic Tool Kit In Magnetic Resonance Imaging
Standard Package 26 Pcs Non Magnetic Tool Kit Titanium
Titanium Material Non Magnetic Tool Kit Adjustable Wrench
Titanium Lightweight Non Magnetic Tool Kit Mri Engineer Repairing
Product Specification
| Delivery Time | 7-14days | Payment Terms | T/T |
| Tool Count | 26pcs | Packaging Details | Carton&wooden Box |
| Case Material | Hard Plastic | Magnetic Susceptibility | < 5 × 10⁻⁶ |
| Supply Ability | 300 Set / Month | Material Composition | Ti-6Al-4V |
| Hardness | 38 HRC | Size Options | 6", 8" Or Customized |
| Place Of Origin | China | Certification | ISO |
| Model Number | 1-cf-7 | Brand Name | Jovi |
Scenario 1: The Artifact That Delayed Diagnosis
A 3T brain scan shows unexplained signal dropout. Radiologist cancels clinic. MRI engineer spends 45 minutes finding a 2 mm stainless hex key fragment embedded in patient table foam. Six patient appointments rescheduled. Cost: $3,200 in lost revenue + radiologist frustration.
Scenario 2: The Quench That Cost $150,000
A steel screwdriver tip breaks inside cryostat port during helium fill. Ferromagnetic fragment falls into cold bore. Scanner quenches. Helium refill: $60,000. Gradient coil replacement: $80,000. Lost scans: 200 patients × $500 = $100,000. Total >$240,000. Insurance denies claim – “non‑compliant tools used.”
Scenario 3: The Brass Wrench That Stripped at 3 AM
Emergency call: MRI not booting. Engineer finds loose gradient coil connection but cannot tighten – brass hex key stripped. No backup tool. Scanner down for 6 hours. Overnight courier for replacement: $400. Lost revenue: $15,000.
| Claim | Reality | Jovvi Difference |
|---|---|---|
| “Titanium tools” (coated) | Steel core with TiN coating – ferromagnetic | Solid Ti‑6Al‑4V, ≥90% titanium |
| “Non‑magnetic stainless” | 316 SS becomes magnetic after cold working (bending, torque) | Titanium does not work‑bank to ferromagnetic state |
| “Brass is safe” | Too soft – strips, leaving ferromagnetic debris? (No, but debris is brass – soft, non‑magnetic) | Titanium hardness (38 HRC) prevents stripping |
| “Ceramic is best” | Brittle – tips chip and fall inside bore | Titanium is tough – no chipping |
Customer: “Your titanium kit is $1,800. A brass set is $400.”
Sales response: “That’s true. But over five years, that $400 brass set will cost you $7,800 in replacements, artifacts, and downtime. Our $1,800 titanium kit costs $1,800 total – zero artifacts, zero replacements, zero quench risk. Which is cheaper?”
Closing statement: “MRI scanners cost $50–200 per minute to operate. A 30‑minute artifact investigation costs $1,500–6,000. One incident pays for our entire ProKit‑2. How many artifacts did you have last year?”
Theme: Technical production details specific to open-end, box-end, combination, and torque wrenches.
Content (approx. 600 words):
| Wrench Type | Jovvi Model Prefix | Manufacturing Method | Key Challenge |
|---|---|---|---|
| Open-end | JOW- | Forged blank + CNC milling jaw opening | Preventing jaw spread under torque |
| Box-end (12-point) | JOWB- | Forged blank + broached internal hex | Concentricity of broached hole |
| Combination | JOWC- | Forged blank + CNC jaw + broached box | Maintaining alignment between ends |
| Torque (adjustable) | JOTW- | Machined beam + assembled spring/scale | Calibration stability over time |
Jovvi uses forged blanks for standard wrenches (better grain structure, higher strength) and fully machined for custom sizes (flexibility).
Forging process:
Ti bar cut to length (15–20% over final weight)
Heated to 955°C (solution treatment temperature)
Press forged (2000 ton press) into rough wrench shape
Trim flash (excess titanium recycled)
Anneal (700°C, 2 hours, air cool)
Result: Grain flow follows wrench contour – superior fatigue resistance compared to machined-only.
| Size (mm) | Jaw Opening Tolerance (Jovvi) | Industry Standard (Steel) | Why Tighter Matters |
|---|---|---|---|
| 8 mm | +0.05 / -0.00 mm | +0.10 / -0.05 mm | Prevents rounding of fastener corners |
| 10 mm | +0.05 / -0.00 mm | +0.12 / -0.05 mm | Ti has lower modulus – tighter fit compensates |
| 14 mm | +0.06 / -0.00 mm | +0.15 / -0.05 mm | Cryostat nuts require perfect fit |
| 19 mm | +0.06 / -0.00 mm | +0.18 / -0.05 mm | High torque applications |
Measurement: Laser micrometer + CMM (coordinate measuring machine) – 100% inspection.
The 12-point broached hole must be concentric with the wrench axis to avoid uneven torque distribution.
Broaching process:
Wrench blank mounted on rotary indexing fixture
Push broach (Ti‑coated carbide) cuts through in 0.05 mm passes
Final pass with sizing broach
Inspection: CMM measures 12 points – runout <0.05 mm
Common defect: Broach misalignment causes oval hole. Jovvi rejects any with runout >0.05 mm.
Each JOTW series torque wrench undergoes five-point calibration:
| Set Point (N·m) | Low Limit (N·m) | High Limit (N·m) | Test Method |
|---|---|---|---|
| 2.0 | 1.9 | 2.1 | Dead weight (0.2 kg at 1 m) |
| 4.0 | 3.8 | 4.2 | Dead weight (0.4 kg at 1 m) |
| 6.0 | 5.7 | 6.3 | Calibration stand (digital) |
| 8.0 | 7.6 | 8.4 | Calibration stand (digital) |
| 10.0 | 9.5 | 10.5 | Dead weight (1.0 kg at 1 m) |
Calibration stability test: After 1,000 cycles at 50% max torque, re-test. Drift must be < ±3% of original reading.
| Property | Jovvi Titanium Wrench | 316 Stainless Wrench |
|---|---|---|
| Magnetic susceptibility (χ) | < 5 × 10⁻⁶ | ~10⁻³ (fresh) → increases with use |
| Yield strength | 880 MPa (minimum) | 205 MPa (annealed) |
| Hardness (HRC) | 38–42 | 15–25 (annealed) → work hardens to 45+ |
| Work hardening effect | None (Ti remains non-magnetic) | Becomes weakly ferromagnetic |
| Weight (10 mm combo) | 45 g | 85 g |
Sales application: “Stainless wrenches are heavy and become magnetic. Titanium wrenches are half the weight, non-magnetic for life, and stronger.”
Company Details
Year Established:
2010
Total Annual:
10000000-20000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
Jovvi(Beijing Hengtai Tech Co., Ltd) was established in 2010. The company adheres to the development concept of “integrity all over the world and conducts all continents”, adheres to the business policy of “strive to create greater value for customers”, and is committed... Jovvi(Beijing Hengtai Tech Co., Ltd) was established in 2010. The company adheres to the development concept of “integrity all over the world and conducts all continents”, adheres to the business policy of “strive to create greater value for customers”, and is committed...
Get in touch with us
Leave a Message, we will call you back quickly!