Palmary Machinery upholds a core tradition defined by Precision, Perfection and Excellence
We believe that reliable quality starts with the machine’s fundamental structure. Our dedicated R&D team meticulously analyzes stress and strain relationships, guaranteeing that every centerless grinder delivers outstanding accuracy and remains deformation-free for life.
What Centerless Grinders Do (Two Core Functions)
Centerless grinding is essential for achieving precise external cylindrical finishes. Palmary machines are engineered for the industry’s three primary grinding methods:
1. Thrufeed Grinding (Through Grinding)
This continuous process is highly efficient for long, straight workpieces, such as bars or tubes, which pass entirely between the grinding and regulating wheels.
2. Infeed Grinding (Plunge Grinding)
Required for components with shoulders, tapers, or complex profiles. The workpiece is positioned and ground in place until the required dimension is met. Automated loading equipment is often paired with this process to maximize productivity.
The Palmary Advantage: Built for Performance
• Structural Stability: The machine body is made of high-quality Meehanite cast iron, which is heat-treated and stress-relieved. Precision spindles undergo normalizing, aging, and high-frequency induction heat treatment, ensuring maximum wear resistance and service life.
• Precision Guarantee: Palmary commits to manufacturing the best quality grinders. Our machines achieve astonishing accuracy, with documented results showing surface roughness as fine as and roundness below .
• High-Efficiency Integration & Automation: CNC models offer powerful functions and user-friendly interfaces, with control available for up to six axes. High-efficiency automatic feeding or unloading devices can be optionally selected or customized, reducing labor requirements and boosting production efficiency. View our CNC centerless grinder series.
• Guaranteed Machine Quality: The machine quality is confirmed through compliance with international safety standards, having obtained EU CE certification, UKCA certification, and Taiwan Type Verification Certificates.
Choosing the Right Palmary Model
Selecting the most suitable centerless grinder should be based on your application needs and workpiece characteristics:
1. Highest Precision and Rigidity Requirements (CNC Models):
1-1. Choose the CNC Bearing Spindle Type (PCB Series). These models use super precision cylindrical roller bearings, specifically designed for heavy cutting applications requiring the highest rigidity and stability.
1-2. Choose the CNC Alloy Spindle Type (FCL Series). These models utilize high-precision alloy bearings, offering high precision and durability.
1-3. Optional equipment includes the Grinding Wheel Balancing System, robotic arms, or customized automatic feeding/unloading devices to achieve highly efficient and automated requirements.
2. Standard or Economic Applications:
The PC Series (Manual or NC model) is a reliable and economic choice for standard grinding tasks, and can still be equipped with appropriate feeding and unloading mechanisms to achieve automation requirements. Visit the PC Series product page.
