DN300-600 Variable Frequency Single Seat Ball Grinding Machine

Suitable for both floating and fixed ball valve spheres with diameter range DN50 to DN125.Achieves surface roughness up to Ra 0.4 and sealing face contact ratio no less than 80 percent.Widely used in valve manufacturing plants for factory outgoing QC and repair workshops.

Detailed Product Description Brief Points

1. DN300-600 Variable Frequency Single Seat Ball Grinding Machine processes ball valve spheres and matching seats for floating and fixed ball valves.

2. Grinding principle: sphere rotates slowly while seat eccentrically floats and adjusts, achieving uniform material removal and excellent surface finish.

3. Station configuration: two independent grinding stations allow simultaneous grinding of sphere and seat for matched pair processing.

4. Integrated Single Seat Valve Sphere Grinding Machine DN50 to 125 is compatible with various grinding compounds including 200, 400, 600, 800, and 2000 grit to meet different surface finish requirements.

5. Achievable surface quality: from initial surface roughness Ra 6.3 on HRC30 to 50 material, finished surface roughness reaches Ra 0.4 with sealing face contact ratio no less than 80 percent.

6. Control system: integrated with frequency conversion speed regulation, enabling stepless speed adjustment from 0.5 to 24.0 rpm for optimal grinding parameters.

7. Ease of use: lightweight and flexible operation, low labor intensity, one operator can manage multiple machines simultaneously.

8. Core advantage: productivity increases by more than ten times compared to manual grinding, significantly reducing labor costs and production lead time.

Product Features and Applications

Features brief points

Two independent grinding stations enable simultaneous sphere and seat processing for perfect matched pair sealing.

Eccentric floating adjustment mechanism ensures optimal contact between valve seat and sphere surface.

CNC integrated system with frequency conversion drive provides precise speed control from 0.5 to 24.0 rpm.

Heavy duty construction with robust frame ensures stability and long term accuracy.

High efficiency: productivity increased by more than ten times compared to manual grinding.

Versatile application: suitable for both floating ball and fixed ball valves across DN50 to DN125.

Low maintenance: simple structure with reliable components ensures easy maintenance and long service life.

Applications brief points

1.Valve manufacturers for factory outgoing quality inspection.

2.Repair and maintenance workshops for ball valve overhaul.

3.Power plants for valve maintenance.

4.Chemical and petrochemical industries.

5.Mining and metallurgy sectors.

6.MRO workshops for industrial valve repair.

7.Large industrial end users for in house maintenance.

8.Third party testing and repair agencies.

Technical Data Brief Parameter List

FAQ Brief Points

1 Are you a trading company or manufacturer?

We are Wenzhou Yufeng Valve Machinery Manufacturer, a direct factory specializing in R&D and production of valve grinding and testing equipment.

2 What is your MOQ for this grinding machine?

MOQ is just 1 set, welcome small trial orders and bulk procurement.

3 What quality certifications do you have?

Equipment manufactured under strict quality control, CE and ISO certifications available upon request.

4 What surface quality can this machine achieve?

From initial Ra 6.3 on HRC30 to 50 material, finished surface roughness reaches Ra 0.4 with sealing face contact ratio no less than 80 percent.

5 What is the grinding principle?

Sphere rotates slowly while seat eccentrically floats and adjusts, delivering uniform material removal and superior surface finish.

6 Do you support OEM ODM customized services?

Yes, we customize grinding diameter range, station configuration, speed range, and control systems based on specific requirements.

7 How many operators are needed?

One operator can manage multiple machines simultaneously due to lightweight and flexible operation design.

8 What is the standard lead time?

Standard configuration typically 21 to 30 days, customized models 30 to 35 days.

9 What payment terms do you accept?

Usually T/T with 30 percent deposit and 70 percent balance before shipment, L/C at sight also acceptable.

10 What information should I provide for quotation?

Please share valve type floating or fixed ball, sphere diameter range DN, initial surface condition, required finish, material hardness HRC, and production volume.