KASHIYAMA MSB3601 & Ebara EVM202 EV-L200N Maintenance Parts

I. Material Code Summary Table

Important Note: Material codes are Taixing (OEM-spec) internal codes, different from OEM part numbers, but products fully match OEM specifications.

II. KASHIYAMA MSB3601 Three-Piece Set Details

2.1 Rotor Assembly (TX110010004+110120001)

Technical Parameters:

· Dynamic balance G1 grade @ 12,000 RPM

· End-face runout ≤0.005mm

· Life 12,000-18,000h

2.2 Chamber Assembly (TX730050029)

Technical Parameters:

· Inner hole precision Ra ≤0.8μm

· Helium leak rate ≤1×10⁻⁹ Pa·m³/s

· Life 18,000-24,000h

2.3 Gear Assembly (TX120080007)

Technical Parameters:

· Carburization layer 0.8-1.2mm

· Surface hardness HRC58-62

· Gear precision ISO Grade 6

· Speed ≤18,000 RPM

III. Ebara EVM202 / EV-L200N DP Shaft Details

3.1 EVM202 DP Shaft

Technical Parameters:

· Tempering HB280-320

· Dynamic balance G2.5 @ 12,000 RPM

· End-face runout ≤0.01mm

· Life 10,000-15,000h

3.2 EV-L200N DP Shaft

Technical Parameters:

· Tempering HB280-320

· Dynamic balance G2.5 @ 12,000 RPM

· End-face runout ≤0.01mm

· Life 10,000-15,000h

IV. Cross-Model Compatibility Analysis

4.1 KASHIYAMA MSB3601 Three-Piece Set (only for MSB3601)

· Cannot cross models: MSB3601 three-piece set is customized for this model

· Reason: Rotor dynamic balance parameters, chamber inner hole size, gear assembly tooth profile are all customized

· Cross-model risk: Assembly interference, dynamic balance failure, leakage

4.2 Ebara EVM202 / EV-L200N DP Shaft

· Same interface: DP standard flange (Ebara EVM/EV-L series universal)

· Different part number: Length may differ slightly (EVM202 is 5mm shorter than EV-L200N)

· Suggestion: Order based on actual model, do not mix

V. 5 Part Number Procurement Recommendations

Key Experience: Gear assembly recommended OEM (contains SKF bearing), other 4 parts Taixing parts have higher cost performance.

VI. OEM Parts vs Taixing Parts Comparison

Total Savings: About 48% (Purchasing 1 set of 5 parts can save ¥25,420)

VII. Bulk Procurement Discounts

VIII. FAQ

Q1: What does the "+" sign in Taixing material code TX110010004+110120001 mean?

A: Indicates that these two part numbers are combination parts, must be purchased together (rotor + rotor shaft pairing).

Q2: Why is MSB3601 gear assembly recommended OEM parts?

A: The gear assembly contains SKF imported deep groove ball bearing, and the bearing quality of OEM procurement is more stable. Taixing gear assembly also uses SKF, but the supply chain is not as stable as OEM.

Q3: Can EVM202 DP shaft be purchased with EV-L200N part number?

A: Yes, but it is necessary to clearly mark the target model when ordering to avoid installation errors.

Q4: Can Taixing parts and OEM parts be mixed?

A: Yes. It is recommended to select parts from the same source for each part to avoid assembly issues.

Q5: The 110120001 in the material code does not have a "TX" prefix, is it a Taixing part?

A: Yes. 110120001 is Taixing's early material code (without TX prefix), still in use.

Q6: Can MSB3601 parts be used on other KASHIYAMA models (such as other MSB series models)?

A: No. MSB3601 is specifically designed for this model, and cross-model use will damage the pump.

Q7: What is the difference between DP shaft 40Cr tempering and 45 steel tempering?

A: 40Cr contains Cr element, strength is 15-20% higher than 45 steel, more wear-resistant.