Polychem® Head Shafts
The Polychem non-metallic telescoping head shaft was invented and installed as part of the first 100% non-metallic system in 1984. At that time, the industry was just beginning to test plastic as a lighter, corrosion-resistant alternative to steel. Today, Polychem non-metallic head shafts have become the water treatment industry’s gold standard.
The head shaft’s unique assembly does not require crane installation and is virtually maintenance free. Two fiberglass end tubes with internal bearings and keyways overlap a center tube and are joined together with torque interlocks and set collars to form one robust, easy-to-lift shaft. Since its introduction, the Polychem telescoping head shaft design has been utilized in over 12,000 systems worldwide.
Features
Design allows for increased field adjustability
Easily slides over pre-installed, wall-mounted spindles
Composed of high-strength, biaxially wound FRP
Available in mono- & jumbo-tube designs
Metallic shafting available
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Specifications
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Metric
| Product | Option | # Tubes | Span Range (ft) | Tube Material | Spindle Material | Center Tube OD (in) | Key Material | Set Collar Material |
|---|---|---|---|---|---|---|---|---|
| Polychem Head Shaft | Standard | 3 | 10 - 29 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | 5.25 | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Polychem Head Shaft | Mono | 1 | 2 - 10 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | None | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Polychem Head Shaft | Jumbo | 3 | 29 - 40 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | 10.73 | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Product | Option | # Tubes | Span Range (m) | Tube Material | Spindle Material | Center Tube OD (mm) | Key Material | Set Collar Material |
|---|---|---|---|---|---|---|---|---|
| Polychem Head Shaft | Standard | 3 | 3.05 - 8.84 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | 133.35 | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Polychem Head Shaft | Mono | 1 | 0.61 - 3.05 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | None | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Polychem Head Shaft | Jumbo | 3 | 8.84 - 12.19 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | 272.54 | Nylon 6-6 | Cast Nylon-6 with 316 SS Band Clamp |
| Polychem Head Shaft | TrueSpan™ | 3 | 3.05 - 6.40 | Glass Fiber reinforced epoxy resin, biaxially wrapped at 45° | Cast Nylon-6 | 146.05 | Nylon 6-6 | - |
Complementary Components
Cast Nylon 6 End Spindles
Nylon 6 Set Collars
Interlock Keys
Torque Interlock System
Bearings
Cast Nylon 6 End Spindles
Wall-mounted spindles support the tube assemblies as they rotate on internal tubular bearings and are equipped with jacking bolts for ease of alignment.
Nylon 6 Set Collars
Collars secure telescoping tubes and are fastened with a 316 SS band clamp.
Interlock Keys
Molded Nylon 6-6 keys connect the head shaft sprockets to the tubular shaft assembly, allowing the sprockets to transmit torque to the system.
Torque Interlock System
The torque interlock system connects the three overlapping tubes to form one shaft and is secured with a set of collars and keys.
Bearings
Water-lubricated UHMW-PE tubular bearings spin on the spindle and are keyed to the outer end tubes to support the shaft.
Articles & Literature
Water & Wastewater Treatment Products
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