Mini Mobile Adjustable Height Boat Lifting Aluminum Gantry Crane with Hand Chain Block

mini mobile adjustable height boat lifting aluminum gantry crane with hand chain blockFeatures: 1: It can stay at any height as your requirement.2: Do not need a pin shaft bearing. 3: Beautiful appearance with spraying twice (primer and car pain)and colorcustomizable;gantry crane  has a light mass and a small volume so it can get throughanyplace easily. Expecially suitable for  environment which is limited by the working area clearance.4: Match chain electric hoist can greatly improve the work efficiency and easy to control.Product parametersThe following technical parameters is for the common size (Most of clients need). Pls check the rated load, the span and the lifting height is suitable for your requirements. Load capacity(TON)Total Height (mm)Max. Lifting Height  (mm)Outside Span(mm)Inner Span(mm )H Height (mm)12000-300024703000288041012000-300024704000388041012600-400034703000288041012600-400034704000388041022000-300022153000280053522000-300022154000380053522600-400033153000280053522600-400033154000380053532000-300021223000280068532000-300021224000380068532600-400031223000280068532600-4000312240003800685  If the common size is not suitable for you, pls provide us the detailed data titled,including the span, the rated load, the lifting height and the other technical parameters( the other data in the table).    Details imagesWeld:align precision parts and welded components for installation. Convenient operation, stable performance, long service life.Girde:we only use I - beam of standard quality, product quality is guaranteed.Screw and nut:all nuts and bolts are made of 8.8 grade high strength steel, plated with corrosion-resistant paint to enhance the service life of the products.Casters:All our gantry cranes are heavy-duty casters with long service life and smooth rolling performance. Even on rough floors it doesn't affect use.Customization:outdoor use options that can add rain cover and change surface paint with stainless steel motor design. Fine surface grinding Fully weld the gap part.Fine polishing, making the surface smoother and the interface more compact. Laser laser technology is adoptedUsing laser laser technology to make the product more accurate, more smooth section. Laser laser technology is adoptedUsing laser laser technology to make the product more accurate, more smooth section. Pursue the details and rigorous processThrough rigorous process, try to reduce the error of the product, make the structure more reasonable and safedelivery picture  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1