Product description What this tool does and why you need it Securely lifts and moves heavy stones and slabs with a welded, high-strength alloy-steel frame that resists bending and fatigue. Reduces manual strain and the risk of dropped loads by providing a stable, non-damaging grip and dependable components built for repeated use. Adjustable design and proven materials make it suitable for a broad range of stone thicknesses and on-site tasks. Key features and benefits Specially engineered for stone handling: Seamless welding and high-grade alloy steel deliver high compressive and tensile strength for safe, long-term operation. Durable components: Wear-resistant lifting rings and quality springs provide excellent recovery and elasticity so the clamp maintains performance under heavy use. Adjustable clamp opening: A bold nut accessory lets you set the clamping range to 2–6 cm or 4–8 cm to accommodate different stone thicknesses. Strong capacity ratings: Supports maximum load capacities of 320 kg and 390 kg (depending on setting/model), offering options for lighter and heavier jobs. Improved grip technology: Embedded polyurethane rubber pads and an anti-slip thread design increase friction without scratching stone surfaces; maintain a firm bite while minimizing surface damage. Safety note: The clamp holds reliably on rough and textured stone. Exercise caution on extremely smooth or polished surfaces where grip may be reduced. Technical attributes Material: High-quality alloy steel construction for the main body. Welding: Seamless welded joints for improved strength and durability. Grip pads: Polyurethane rubber to protect surfaces and increase friction. Springs and rings: Wear-resistant lifting rings and resilient springs for consistent performance. Adjustable range: 2–6 cm and 4–8 cm clamp openings via nut adjustment. Load limits: Up to 320 kg and up to 390 kg depending on selected range or model. Practical applications (use scenarios) Landscaping: Safely position garden boulders, decorative stones, and flagstones when creating retaining walls, terraces, or pathways. Masonry and construction: Lift and place granite, sandstone, or concrete slabs during wall construction, facade installation, or site repairs. Paving and hardscaping: Move and set pavers and heavy tiles during driveways, patios, and step installation without chipping or cracking the stone. How it improves your work Faster, safer handling: Cut time and labor by securely gripping stones for precise placement with minimal manual adjustment. Less surface damage: Polyurethane pads and controlled clamping pressure protect visible surfaces compared with chain or rope methods. Long service life: Robust alloy-steel construction and wear-resistant components minimize downtime and replacement needs. Usage and safety tips Verify the stone thickness matches the selected clamp setting (2–6 cm or 4–8 cm) before lifting. Respect the stated load limits (320 kg / 390 kg) and do not exceed them. Avoid using on highly polished, greasy, or wet surfaces without testing grip first. Inspect lifting rings, springs, and welds regularly for wear or damage; replace worn components before use. This stone-handling clamp provides a reliable, adjustable solution for lifting and moving a wide range of stone types while protecting surfaces and improving jobsite efficiency.