The 5X uses an air-cooled thin oil lubrication station - no water supply required on site, lower installation complexity, and no risk of water contamination in the oil circuit. The standard VSI uses a water-cooled station that provides higher cooling capacity for hot climates or very high duty cycles but requires a clean water supply and heat exchanger maintenance. For most quarry and aggregate plant installations, the air-cooled 5X station is the simpler and more practical solution.

Yes - tip speed is adjusted via the drive motor VFD from the control panel without stopping the machine. Increase speed to produce finer output with higher fines content; reduce speed to shift the product coarser. Adjust in small increments and allow 10–15 minutes for the product gradation to stabilise before sampling. Speed range per model is shown in the technical specifications table.

Tip liners wear when the autogenous rock lining breaks down and feed material contacts metal - typically during startup before the lining builds, during feed interruptions, or when feed is very fine (little lining material available). On limestone, tip liners typically run 300–500 hours; on harder abrasive feed (granite, river pebble), 200–400 hours. Liners are reversible - rotate before replacing to double effective life. OEM tip liner sets are stocked for all 5X models.

The standard VSI is the original platform - well-proven, cost-effective, with water-cooled lubrication. The 5X improves on it with a deeper-cavity rotor for higher throughput and better feed port geometry that reduces blockage at high feed rates. The VSI6X is the top-specification series with the largest rotors, air-cooled lubrication, and the highest capacity ceiling. For new mid-scale installations, the 5X is the recommended step up from the standard VSI; for the largest high-utilisation production lines, the VSI6X is the optimum choice.

In rock-on-rock mode on limestone or soft-medium rock, rotor tip liners typically run 300–600 hours before rotation or replacement. On harder, more abrasive feed (granite, river pebble), expect 200–400 hours. Tip liners are reversible - each has two usable faces. OEM tip liner sets are stocked for all VSI models; keep one spare set on site to minimize downtime during planned changes.

Calibration is recommended at commissioning and after any rotor maintenance that involves removing or replacing tip liners or the rotor assembly. The sensor's 0.1–20 mm/s range covers both normal operating vibration and early-stage bearing defect signatures; alert thresholds should be set based on baseline readings taken during the first 50 hours of operation. Consult the commissioning guide for model-specific threshold recommendations.

Shutdown triggers on two conditions: loss of oil flow (pump failure, blocked filter, or line leak) and loss of oil pressure at the bearing supply points. The dual-pump arrangement provides redundancy - a single pump failure switches supply to the backup pump and alerts the operator, rather than triggering immediate shutdown. Shutdown only occurs if both pumps fail to deliver flow or pressure simultaneously.

The VSI series is the standard platform with dual feed mode (centre-and-side, or centre-only) and dual-motor drive. The VSI6X is the next-generation series with a larger rotor, deeper feed ports for higher single-pass throughput, and a more advanced hydraulic lubrication station with air-cooling as standard (versus water-cooling on the VSI series). For new installations, the VSI6X is the recommended choice where maximum throughput per unit is the priority; the VSI series remains a well-proven, cost-effective option for mid-scale operations.