Schunk PGN-plus replacement fingers are precision-manufactured alternative components for worn, damaged, or discontinued original fingers. MUXI Precision produces compatible PGN-plus fingers based on original parts, drawings, samples, and application requirements — with customized materials, contact geometry, and surface treatments.
What Is Schunk PGN-plus?
Schunk PGN-plus is a pneumatic parallel gripper series widely used in industrial automation for handling, assembly, CNC machine tending, and material transfer applications. The gripper fingers are the components that directly contact the workpiece.
During millions of operating cycles, these contact surfaces gradually wear due to mechanical friction, repeated clamping force, contamination, and workpiece variation. When finger wear affects gripping reliability, replacement becomes necessary to maintain production stability.
The PGN-plus series is known for its robust design, high gripping force-to-weight ratio, and long service life — making it one of the most popular gripper platforms in automotive, electronics, and general manufacturing environments.
Why Schunk PGN-plus Fingers Need Replacement
Common Schunk PGN-plus Models
Custom replacement fingers are available for the following PGN-plus series. Common applications are listed for reference — if your model isn't listed, send your gripper details for compatibility evaluation.
| Model | Typical Application |
|---|---|
| PGN-plus 40 replacement finger | Compact automation, small parts handling |
| PGN-plus 50 replacement finger | Small component handling, light assembly |
| PGN-plus 64 replacement finger | General industrial automation, material transfer |
| PGN-plus 80 replacement finger | CNC machine tending, medium assembly |
| PGN-plus 100 replacement finger | Heavy-duty handling, large part transfer |
Replacement Finger Design Considerations
Custom replacement fingers can be engineered to better match specific application requirements through three optimization dimensions.
Finger Surface Design
The contact surface geometry directly affects gripping stability and workpiece protection. Common options include:
| Contact Surface | Best For | Consideration |
|---|---|---|
| Flat finger | General flat workpieces | Simple, cost-effective |
| V-groove finger | Round / cylindrical parts | Centers round parts, prevents rolling |
| Form-fit contour finger | Complex shaped workpieces | Maximizes contact area, reduces marking |
| Soft jaw insert compatible | Surface-sensitive / finished parts | Non-marring, vibration damping |
Material Selection
| Application | Recommended Material | Key Properties |
|---|---|---|
| General handling, high-speed | 7075 Aluminum | Lightweight, good strength-to-weight |
| CNC machine tending, oily env. | 6061/7075 + hard anodizing | Wear resistance, oil-resistant surface |
| Heavy / abrasive parts | Hardened steel (4140/4340, HRC 40-55) | High wear resistance, impact strength |
| Surface-sensitive parts | Polyurethane insert / UHMW | Non-marring, vibration damping |
| High-temperature environment | PEEK / engineering plastics | Thermal stability, chemical resistance |
Surface Treatment
| Treatment | Benefit |
|---|---|
| Hard anodizing (Type III) | 2-3× wear life for aluminum fingers |
| Teflon-impregnated anodizing | Non-stick surface, reduced contamination buildup |
| Nitriding / case hardening | Surface hardness increase for steel fingers |
| TiN coating | Extreme wear resistance for high-cycle applications |
OEM Schunk Finger vs Engineering-Based Custom Replacement
OEM replacement remains a reliable option. However, engineering-based custom replacement provides additional flexibility when optimization, faster delivery, or legacy support is required.
| Aspect | OEM Replacement | Engineering-Based Custom Replacement |
|---|---|---|
| Availability | Depends on supplier stock | Flexible production |
| Lead time | Depends on region | Short production cycle |
| Design | Original specification | Application optimized |
| Material | Fixed options | Selectable from engineering guide |
| Legacy support | Depends on model availability | Possible from sample or drawing |
| Small batch | May be difficult | Single set to volume pricing |
Custom Replacement Process
For custom Schunk PGN-plus replacement fingers, MUXI Precision follows a structured engineering workflow from sample to delivery.
Send Sample or Drawing
Existing finger, drawing, or gripper model number
Compatibility Review
Check mounting interface, dimensions, material suitability, gripping condition
CAD Modeling
Dimensional accuracy verified against original part geometry
CNC Manufacturing
Precision machining with specified surface treatment
Quality Inspection
Dimensional verification, surface finish check
Delivery
Ready for installation, no additional modification required
Request a Schunk PGN-plus Replacement Evaluation
Why MUXI Precision?
MUXI Precision focuses on solving industrial downtime problems through engineering-based replacement solutions. Our experience covers precision industrial consumables, CNC manufactured replacement components, and automation wear parts.
Application Engineering
We evaluate gripping force, workpiece material, cycle frequency, and operating environment — not just dimensions.
Replacement Optimization
Each replacement is evaluated for improvements in contact geometry, material grade, and surface treatment.
Industrial MRO Experience
Proven track record solving real-world wear and failure problems in production environments.
Robot Gripper Replacement — Cluster Index
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Brand Replacement Guides
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