Trimmer Head Products

Proulx Mfg., Inc. has been producing Universal™ Trimmer Heads to O.E.M. trimmer manufacturers for over 35 years. Proulx Mfg., Inc.leads the industry in innovation and quality products for professional and
consumer use.

From the original Universal™ Twist Feed Manual Head, to Cyclotron™ Technology Trimmer Heads of tomorrow today,
Proulx Mfg, Inc. is the only manufacturer of heads that never need splitting to load and/or unload a line. We have more patented coverage than any other trimmer head manufacturer worldwide.

Standard Heads

UN-10L Manual-Twist Feed Head® Pull and Twist spool to advance line. For Heavy, Medium and Light Duty Gas trimmers.	UN-31L Semi-Matic™ Tap Head Introduced in 1976, first tap to advance trimmer head and remains a favorite today. For Heavy, Medium, and Light Duty gas trimmers.
UN-32L Semi-Pro™ Tap Head High Capacity dual feed cutting head for Heavy, Medium and Light Duty gas trimmers.	UN-34L, UN-34R UN-34L, UN-34R Bump and Cut™ Trimmer Head This is the little brother to the Semi-Pro with excellent cutting action for Medium and Light Duty gas trimmers.
UN-38R Mini Bump and Cut™ Trimmer Head Residential tap to advance head for spindle trimmer units. Excellent performance and great value. For Light Duty gas trimmers.	UN-39R Mini Bump and Cut™ Trimmer Head The same head as the UN-38R but for trimmers with threaded shafts. For Light Duty gas trimmers.

Swift Load™ Heads

UN-60L Video Swift Load™ Semi Matic Head First tap to advance head and first to have a Swift Load™ easy wind system. For Heavy, Medium and Light Duty gas trimmers.	UN-61L Video Swift Load™ Manual Head Great performance with an easy load system. Simply push each end of a single piece of line into each eyelet of head then twist spool to retract line into head and cut loop. This head is for Heavy, Medium and Light Duty gas trimmers.
UN-62L Video Swift Load™ Semi Pro Head Easy to load and high capacity trimmer head for Heavy, Medium and Light Duty gas trimmers.	UN-64R Video Swift Load™ Bump and Cut Head Excellent cutting action with easy to wind system for Medium and Light Duty gas trimmers.
UN-69R Swift Load™ Mini Bump and Cut Head Residential tap to advance head with easy to wind Swift Load™ system for Light Duty thread curved shaft trimmers.

Swift Load™ with Never Split™ System

UN-72L Video UN72L Swift Load™ – NEVER SPLIT™ Head Semi-Pro (bump feed) Head for LEFT HAND rotating brush cutters ONLY. For Heavy, Medium and Light Duty gas trimmers.	UN-74L, UN-74R Video UN-74L, UN74R "Swift Load™ – NEVER SPLIT™" Head Semi-Pro (bump feed) Head for left and right hand rotating brush cutters. For Medium and Light Duty gas trimmers.
UN-78R Video UN-78R "Swift Load™ – NEVER SPLIT™" Mini Bump & Cut Head- For Spindle Units Only Semi-Pro (bump feed) Head for RIGHT HAND rotating brush cutters ONLY. For only Light Duty gas trimmers.	UN-79R Video UN-79R "Swift Load™ – NEVER SPLIT™" Mini Bump & Cut Head Semi-Pro (bump feed) Head for RIGHT HAND rotating brush cutters ONLY. For only Light Duty gas trimmers.

Swift Load™ Fixed Line Head and Tri-Blades

UN-46 Video Swift Load™ Fix Line Head Load line in seconds. This head uses .080"-.130" 8” pre-cut line. For Heavy, Medium, and Light Duty gas trimmers.	UN-50 Nylon Swing Blade Head Will fit all brush cutters and attaches to the brush cutters in the same way as a metal disc blade. An inexpensive head used for the tougher grass, perfect replacement head to the nylon line cutting head, head type swing blade, head diameter 304 mm (12” cutting swath), Heavy Duty or commercial use.
UN-55 Nylon Swing Blade Head Will fit all brush cutters and attaches to the brush cutters in the same way as a metal disc blade. An inexpensive head used for the tougher grass, perfect replacement head to the nylon line cutting head, Head type swing blade, head diameter 254 mm (10” cutting swath), Medium Duty and residential.	UN-57 Swivel Technology StrikeForce™ with Swivel Technology has six cutting lines that are perfect for a detailed edging and can increases efficiency with grass and weed trimming. The Line Swivel Technology absorbs the shock eliminating line breakage and extending line life.
UN-59 A versatile trimmer head converts easily from a string head to a bladed head.