Open Style G-Rails

Eliminates corrosive pockets typically experienced with plugged and/or restrictive channel structures

Qwik Release Pin Pulling System

Patented Qwik Release makes slider adjustment safe, easy, and efficient. Qwik Release allows one person to reposition the slider, and eliminates the headache of bound-up pins. Standard on all HOLLAND sliders.

Hardened Steel Wear Pads

Hardened steel wear pads reduce hanger wear and prolong life, preventing hanger failure.

Axle Clamp Assembly

Features 3/4˝ Grade 8 round U-bolts and an unique custom top plate design for positive U-bolt alignment and consistent clamp load.

Slider Sub Frame

Manufactured with 80,000 lbs. psi yield steel and strategically located cross-members to resist racking and buckling. Models available to accommodate 13⁄8˝ and 15⁄8˝ pins.

SAF Composite Springs

Discover the benefits of air-ride performance without the complexity of air-ride suspensions. SAF composite springs provide superior cargo protection, and an 80 lb. weight savings per tandem when compared to steel springs.

SAF X-Series 5.75' Diameter Axle

The optimized design of the 5.75˝ axle brings a 20 lb. weight savings per tandem, and is over 30% more rigid when compared to the standard 5˝ diameter axle.

Black Armour™ Metal Protection

The Black Armour™ metal protection process, unlike a primer, paint or powder coating, chemically bonds with metal to form a protective skin that is impervious to water and anti-icing chemicals. BLACK ARMOUR™ is top coat compatible without pre-sanding and remains flexible to resist gravel impingement. If scraped, BLACK ARMOUR™ inhibits the spread of rust creep.

Air Release Pin Pull

The Air Release Pin Pull system features fewer working parts than competitive models. Air Release is easily serviced, and the pins can be mechanically released in the event of an air-down situation.

Tire Pilot Plus™

The SAF Tire Pilot Plus™ is an enhanced tire pressure management system that controls pressure through inflation or high-pressure relief while maintaining equal pressure across all wheels.

SAF P89™ Air Disc Brake System

All the benefits you expect from the world's leading trailer axle disc brake supplier, at a price point that makes sense for commercial fleets of all sizes.

INTEGRAL® disc brake’s advanced rotor and hub adapter design and manufacturing process. INTEGRAL’s proprietary bi-metallic casting process mechanically joins two materials with unique properties into one INTEGRAL® rotor/hub assembly.

  • North American parallel and tapered spindle design with capacities up to 25,000 lbs.*

  • Accommodates up to 2˝ offset wheel rims for multiple wheel end configurations**

  • Industry standard right hand spindle threads with premium spindle nuts

  • Hub design accepts industry standard bearings for field service

  • Hub features a bolt-on hub cap and comes standard with high performance semi-fluid grease

  • Heavy-Duty Vented Rotor

  • SAF Caliper

  • Premium Matched Set Bearing

  • 5-Year Warranty


*Up to 25,000 lbs. axle beam rating
**Axle is derated to 20,000 lbs. with 1.13' and 2.0' offset wheels.

SAF P89 Plus™ Air Disc Brake System

Featuring the legendary INTEGRAL® rotor/hub and premium sealed bearings for reduced maintenance.

  • North American parallel and tapered spindle design with capacities up to 25,000 lbs.*

  • Accommodates up to 2˝ offset wheel rims for multiple wheel end configurations**

  • Industry standard right hand spindle threads with premium spindle nuts

  • Hub design accepts industry standard bearings for field service

  • INTEGRAL® disc brake design combines two unique materials into an advanced hub and rotor into one assembly

  • Life-Long Sealed Bearings

  • Premium Brake Chambers

  • SAF Caliper

  • Premium Spindle Nuts

  • 7-Year Warranty


*Up to 25,000 lbs. axle beam rating
**Axle is derated to 20,000 lbs. with 1.13' and 2.0' offset wheels.

Upper Body Rails

Roll formed body rails are manufactured from high strength 80,000 KSI steel.

SAF Drum Brake

The SAF standard configuration features a 5-3/4' diameter axle tube with 16-1/2' x 7' extended life brake linings, intermediate cams, and industry standard tapered spindles.

Available options for the SAF Drum Brake include:

  • Parallel Spindle

  • Dust Shields

  • 16-1/2' x 8-5/8' Drum Brakes

  • Fully Dressed Wheel Ends

  • Automatic Slack Adjusters

  • Brake Chambers

  • Tire Inflation Prep