The QuadSteady Stability System is Harvey's revolutionary innovation that features independent spring-loaded support legs that adapt to uneven surfaces upon contact. This system maintains constant tabletop height whether the base is engaged or disengaged, preventing dangerous side tilting and ensuring exceptional stability on various floor conditions. The system can accommodate floor slopes up to 1/8" per foot, which meets U.S. garage slope standards.

SPIDER M-1500 Standard: Features 2 fixed + 2 swivel casters with 2 support legs, ideal for general workshop applications with standard mobility needs. Offers reliable movement with slight directional preference due to mixed caster configuration.

SPIDER M-1500Pro Premium: Has 4 swivel casters with 4 synchronized support legs, allowing complete 360-degree rotation and movement within the equipment's own footprint. Perfect for tight workshop spaces where maximum maneuverability is essential.

SPIDER M-1500E Extension Kit: Specifically designed for table saws with extension tables, supporting up to 400 lbs with adjustable dimensions. Can be used standalone or integrated with either base model for complete table saw mobility solutions.

Both the SPIDER M-1500 and SPIDER M-1500Pro can support up to 1,500 lbs (680 kg) of equipment weight. The M-1500E extension kit supports up to 400 lbs (180 kg). The bases are constructed with high-quality aluminum alloy and stainless steel to handle these substantial loads while maintaining stability and smooth operation.

The Spider Mobile Base is designed with universal compatibility for most woodworking machinery including table saws, band saws, planers, jointers, shapers, and other heavy workshop equipment. The adjustable base dimensions accommodate equipment from 16-1/2"×20-7/8" minimum to 25-19/32"×29-59/64" maximum, making it suitable for a wide range of manufacturers and models.

The innovative linkage design allows you to raise or lower all support legs simultaneously with a light step on the foot pedal. When you step down, the legs lower and the equipment becomes stationary. When you lift the pedal, the legs retract and the equipment can be moved freely. The system maintains consistent stepping force regardless of equipment weight, making operation effortless.

Installation typically takes 1-2 hours and requires the included hex wrench set (2-6mm) and dual-purpose wrench (13mm). The process involves assembling corner brackets, adjusting base dimensions to match your equipment, and fine-tuning the support leg operation. Detailed instructions with diagrams are provided, though professional installation is recommended for very heavy equipment.

The base features tool-free adjustment by loosening the corner bracket fasteners, sliding the rails to the desired dimensions, and retightening. Ensure the base is 1/4" to 1/2" larger than your equipment base on all sides for proper fit. The system includes measurement guides to ensure equal spacing and prevent binding during operation.

The QuadSteady system automatically adapts to floor irregularities through spring-loaded legs. Use the included dual-purpose wrench to rotate the regulating screws clockwise to raise or counterclockwise to lower individual support points. Ensure all support feet maintain at least 25/64" clearance from the ground when the base is in mobile mode.

The SPIDER M-1500E Extension Kit is specifically designed for equipment with extension tables, such as table saws. This kit provides additional support legs that can be adjusted from 18-1/2" to 27-9/16" span and 27-9/16" to 45-29/32" length. The extension kit integrates seamlessly with either the SPIDER M-1500 or SPIDER M-1500Pro base systems.

Set the pedal at approximately 30° angle to the ground during installation. If the pedal is too low for foot access, adjust its position using the included fasteners. The pedal should allow you to place your foot underneath when the base is engaged and provide smooth operation when pressed. Test the system before loading your equipment.

The Spider Mobile Base uses industrial-grade casters that provide exceptionally smooth movement. Users report being able to move 600+ lb equipment with just one or two fingers. The SPIDER M-1500Pro's four swivel casters allow complete 360-degree rotation, enabling tight turns and precise positioning even in cramped workshop spaces.

No, the QuadSteady Stability System maintains constant tabletop height. Unlike typical mobile bases where engaging the system lifts or lowers the equipment, the Spider base keeps casters in contact with the floor at all times. This prevents tool drops, maintains work accuracy, and eliminates the need to readjust equipment settings.

When engaged, the Spider base is exceptionally stable. The support legs enhance static friction up to 916N (calculated based on 0.8 friction coefficient with concrete floors). The spring-loaded legs automatically adjust to surface irregularities, and users report rock-solid stability even with heavy machinery during demanding operations.

The SPIDER M-1500 with mixed caster configuration allows smooth movement with slight directional preference from the fixed casters. The SPIDER M-1500Pro with four swivel casters provides complete 360-degree movement, allowing the equipment to rotate within its own axis and perform tight U-turns even in narrow workshop spaces.

The QuadSteady system is engineered to handle floor slopes up to 1/8" to 1/4" per foot, meeting standard U.S. garage slope requirements. The adjustable support legs automatically adapt to uneven surfaces, maintaining equipment level and preventing dangerous tilting that could occur with rigid mounting systems.

The Spider Mobile Base is constructed from high-quality aluminum alloy and stainless steel components with corrosion-resistant coating. The materials provide excellent rust and wear resistance while maintaining the strength needed for 1,500 lb capacity. Industrial-grade casters, precision bearings, and heavy-duty compression springs ensure long-term reliability.

Regular maintenance includes lubricating the gear mechanisms by opening the removable covers and applying grease as needed. Clean dust and debris from moving components, inspect fasteners and adjustment mechanisms periodically, and check casters and springs for wear. The quality construction minimizes maintenance requirements compared to lesser alternatives.

The base adds minimal footprint while maximizing functionality. The adjustable design accommodates equipment bases from 420×530mm to 650×760mm (16-1/2"×20-7/8" to 25-19/32"×29-59/64"). The low-profile design doesn't significantly increase overall equipment height or space requirements while providing substantial mobility benefits.

The Spider Mobile Base is covered by Harvey Woodworking's standard two-year limited warranty covering manufacturing defects and component failures under normal use conditions. The warranty covers materials and workmanship but excludes damage from misuse, normal wear, unauthorized modifications, or lack of proper maintenance.

Yes, Harvey Woodworking maintains comprehensive spare parts inventory for all Spider Mobile Base models. Common replacement items include casters, springs, bearings, gears, and hardware components. This ensures long-term serviceability and protects your investment in this professional-grade mobility system.

Always disconnect power and dust collection before moving equipment. Clear the movement path of obstacles, wires, tools, and debris. Push equipment from the lowest possible point to prevent tipping, and use assistance for very heavy machinery. Ensure the support legs are fully engaged and equipment is stable before reconnecting power and resuming work.

Avoid moving machinery on slopes exceeding 1/8" per foot, as stopping heavy equipment on inclined surfaces can be difficult and dangerous. The QuadSteady system can accommodate this slope when stationary, but movement should be restricted to level surfaces for safety. Always test stability after positioning equipment on any slope.

Keep fingers, toes, and other body parts clear of the base during movement. Enlist multiple people to help move very heavy equipment safely - typically four people minimum for lifting equipment onto the base. Clear all pathways before movement and move slowly with full control. Never attempt to move equipment that exceeds the base's weight capacity.

If there's slipping when the pedal is engaged, gradually tighten the regulating screws equally until slipping stops while maintaining proper ground clearance. If the pedal requires excessive force or won't engage fully, gradually loosen the regulating screws until smooth operation returns. Always adjust incrementally and test operation before loading equipment.

The consistent tabletop height prevents accidental tool drops and maintains work accuracy. The stable engagement system eliminates dangerous side tilting common with inferior bases. Smooth movement reduces strain and physical effort required to reposition heavy equipment, and the positive locking system ensures equipment stays put when engaged.