Vertical Rotary Transfer Machine for DN20 Gate Valve Machining: Optimized for High-Volume Simplicity

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The DN20 gate valve represents one of the most common and straightforward valve types in plumbing, heating, and general fluid control applications.
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Product Description

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Machine Positioning and Core Value

While simple in design, its production demands are anything but—high volumes, consistent quality, and cost efficiency are paramount. The Vertical Rotary Transfer Machine (Vertical Waterwheel Machine) delivers an ideal solution specifically tailored for DN20 gate valve body machining.

Why DN20 Gate Valves Are Ideal for Vertical Rotary Transfer

• Unlike complex multi-port valves requiring extensive station counts, the DN20 gate valve features:

• Symmetrical body design – Perfectly suited for vertical clamping and multi-sided machining

• Limited but repetitive operations – Drilling, tapping, sealing surface machining, and end facing

• High annual volumes – Typically hundreds of thousands to millions of pieces

• Non-ferrous materials – Brass, bronze, and cast iron common in gate valve production

Technical Specifications and Configuration

Parameter	Typical Configuration
Stations	6 stations (1 load/unload + 5 machining)
Spindles	6-12 spindles depending on operation count
Operations	Rough drilling, precision boring, threading, grooving, face milling, chamfering
Spindle motors	3-5 KW servo motors per station
Clamping system	Synchronized hydraulic vises for consistent part holding

Machining Range and Applicable Products

1. Application: Suitable for processing within DN15- DN50 valvehousing and other tri-branch parts

2. Power head distribution: According to the definition of products

3. Gripper: Synchronous hydraulic vice.

4. Loading/unloading method: Manual loading/unloading. Robot or manipulator can be a plus.

5. Tool cooling system: Water cooling, spraying, gas injection andother cooling methods

6. Make the number of power head axles according to productfeatures.

Roughly drilling			Roughly drilling
Spindle#1,110mm,Taiwan made, Drilling		Station #2	Spindle #2, 110mm.Taiwan made, Drilling		Station #2
Turning motor (servo) 4 KW, "Gtake" China, 2800RPM	Feeding motor (servo) 1 KW less than 2000RPM	Synchronized clamp. Code:CP-40, China made	Turning motor (servo) 4 KW, "Gtake "China, 2800RPM	Feeding motor (servo) 1 KW," Xinjie"China, less than 2000RPM	Synchronized clamp. Code:CP-40, China made

Milling			Milling
Spindle#3,110mm,Taiwan made, drilling(int)		Station #3	Spindle #4, 110mm.Taiwan made, Threading (Ext)					Station #3
Turning motor (servo) 3KW, "Xinjie" China, 2800RPM	Feeding motor (servo) 1 KW, " Xinjie " China, less than 2000RPM	Synchronized clamp. Code:CP-40, China made	Turning motor (servo) 5KW, "Gtake " China, 2800RPM		Feeding motor (servo) 1 KW (Xinjie" China less than 1200RPM			Synchronized clamp. Code:CP-40, China made
Threading			Threading
Spindle#5,110mm,Taiwan made, Boring or milling		Station #4	Spindle #6, 110mm.Taiwan made, Groov milling				Station #4
Turning motor (servo) 4KW, " Gtake " China, 2800RPM	Feeding motor (servo) 1 KW " Xinjie " China, less than 2000RPM	Synchronized clamp. Code:CP-40, China made	Turning motor (servo) 3 KW, German threading head ), 800RPM		Feeding motor (servo) Y-axis 1 KW, X-axis 0.75KW "Xinjie"China, less than 2000RPM		Synchronized clamp. Code:CP-40, China made
One side surface milling, with slidable power head			Another side surface milling with slidable power head
Spindle#7,110mm,Taiwan made, Threading		Station #5	Spindle #8, 110mm.Taiwan made, Grooving				Station #5
Turning motor (servo) 4KW, " Gtake " China, 2800RPM	Feeding motor (servo) 1 KW," Xinjie " China, less than 1200RPM	Synchronized clamp. Code:CP-40, China made	Turning motor (servo) 4KW, " Gtake " China, 2800RPM		Feeding motor (servo) 1 KW (Xinjie " China less than 2000RPM		Synchronized clamp. Code:CP-40, China made
Milling			Threading
Spindle#9,110mm,Taiwan made,drilling		Station #6		Spindle #10, 110mm.Taiwan made, Threading (int)			Station #7
Turning motor (servo) 4KW, "Gtake"China, 2800RPM	Feeding motor (servo) 1 KW,"Xinjie" China, less than 2000RPM	Synchronized clamp. Code:CP-40, China made		Turning motor (servo) 3 KW, " Xinjie " China, 2800RPM		Feeding motor (servo) 1 KW," Xinjie " China, less than 1200RPM	Synchronized clamp. Code:CP-40, China made

Summary

Built on multi-station parallel processing, the vertical waterwheel machine delivers an efficient, stable, and cost-effective automated solution tailored to the "simple structure, high volume" characteristics of DN20 gate valves, making it an ideal choice for high-volume valve production.