Are you still troubled by low efficiency, high costs, and poor precision in rotor machining? The PH50-1000 CNC Rotor Whirling Milling Machine offers you a one-stop solution:

① The single-rotor machining time is drastically reduced from 4–6 hours to just 8 minutes, boosting efficiency by over 30 times;

② The surface finish is stably maintained at Ra 1.6–3.2, far exceeding industry standards;

③ The unit machining cost is cut by 52%, equipment occupancy costs are reduced by 97%, and labor and energy consumption are significantly lowered.

This machine not only breaks through the bottlenecks of traditional machining processes, but also helps you seize market opportunities and respond rapidly to order demands.

Workpiece literacy

The rotor is the core component of a plastering machine’s power system, undertaking the functions of power transmission and operation drive. It drives the mixing blades/conveying screw to rotate at high speed, achieving uniform mixing and stable conveying of mortar.

Made primarily from high-strength alloy steel (e.g., forged 45# steel), the rotor features a complex helical surface structure, imposing extremely stringent requirements on machining precision and surface finish. Inadequate precision will cause unstable power transmission and shorten the service life of the plastering machine; poor surface finish will intensify wear and tear and increase maintenance costs.

Common risks include: delayed orders caused by low efficiency of traditional machining processes, customer complaints arising from substandard surface finish, and squeezed profit margins due to excessively high costs.

Core pain points

There are three core pain points in machining rotors with traditional vertical machining centers:

① Low Efficiency: Single-piece machining takes 4–6 hours, failing to meet the delivery requirements of bulk orders;

② Unstable Quality: Surface finish is mostly above Ra 3.2 with significant tolerance fluctuations, resulting in a 5% rejection rate;

③ Excessively High Costs: Prolonged equipment occupancy, manual monitoring, and power consumption keep unit machining costs high. In addition, rapid equipment wear leads to a year-on-year increase in maintenance expenses.

These pain points directly affect the factory’s production capacity, profit margins and market competitiveness.

Overview of the Process Flow

The PH50-1000 adopts the process of blank pre-treatment → rough machining → finish machining:

① High-strength forgings are selected as blanks (to minimize deformation) and undergo annealing stress-relief pre-treatment;

② Rough Machining: The whirling head rapidly cuts off the machining allowance;

③ Finish Machining: Servo-driven systems ensure precise tool path movement.

Key points of each link

Blank Pre-treatment: Alloy steel forgings are selected as the blank material. The annealing process is applied to eliminate residual stress and reduce the risk of machining deformation.
Key Equipment: Annealing furnace
Rough Machining: The PH50-1000 is equipped with an integrated high-strength bed frame and 55° dovetail guideways, ensuring exceptional rigidity and wear resistance. Its whirling head is driven by a variable-frequency motor to achieve high-speed cutting, rapidly removing 80% of the machining allowance.
Key Equipment: Variable-frequency whirling head, integrated bed frame
Finish Machining: The feed axes (Z/X) are fitted with precision ball screws and Siemens servo motors, which deliver high transmission accuracy and smooth tool path movement, thus ensuring the geometric accuracy of the helical surface.
Key Equipment: Siemens servo system, precision ball screws

Revenue data

Indicator	PH50-1000 Value	Traditional Processing Value	Improvement Degree
Single Rotor Processing Time	8 minutes	4-6 hours	30x+
Surface Finish	Ra1.6±0.2	Ra3.2±0.5	50% Optimization
Positioning Accuracy	≤0.015mm	≤0.1mm	85% Improvement

Case/Application Scenario

Case Study: A construction machinery manufacturer originally processed rotors using vertical machining centers, with a daily output of only 10 units and an order delivery cycle of 15 days. After introducing the PH50-1000, the daily output increased to 300 units, the delivery cycle was shortened to 2 days, and profits grew by 40%.

Applicable Scenarios: Batch production of plastering machine rotors, lead screw machining, worm machining, and roll machining.

Device parameters and configurations

Serial Number	Parameter/Configuration Item	Value/Specification
1	Model	PH50-1000
2	Number of Axes	4-axis Triple Linkage (Z/X/A/C)
3	Control System	Siemens 808D/SYNTEC/DF
4	Servo Motor/Drive	Siemens Servo System
5	Power of Whirlwind Milling Head	Variable Frequency Motor Drive
6	Maximum Processing Length	700mm
7	Outer Diameter Range of Workpiece	20-90mm
8	Positioning Accuracy (Linear Axis)	≤0.015mm
9	Repeat Positioning Accuracy (Linear Axis)	≤0.01mm
10	Surface Finish	Ra1.6-3.2
11	Maximum Spindle Speed	0-1500rpm
12	Rapid Traverse Speed of Feed Axis	4-5m/min
13	Machine Weight	2800kg
14	Overall Dimensions	2900×2000×2100mm
15	Total Power	18kW

PH50-1000 CNC rotor whirling machine