Taking the advantage of first-class engineers, the most advanced chain making machines from Germany and the up-date manufacturing technology from Japan, we always guarantee our design and quality control following the step of times and enhance the share of international market, that is the reason why our corp can smoothly obtain the approval of ISO9002 in 1999, as well as CE approval later on, also it can explain why we are the first and only one that successfully get the Germany certificate of GS for hoists in China.
Motor: hoist motor is an taper type rotor motor with braking, it is made by nanjing special motor factory, it is of the best quality motors, it has bigger torque, so it can be adapted to moving frequently, the maximum torque is 2.4-3 times than the rated torque.
Gear box: hoist gear box has specially treated gears for high wear resistance. Each geared shaft assembly is supported on ball or roller bearings , to ensure smooth, low-friction operation.
Wire rope: hoisting rope comply with the exporting standards. The leading rope taken by the drum, does not slip sideways when slack. The factor of safety, on the nominal breaking strength of the rope is six.
Rope drum: grooved drum, seamless pipe of adequate length to be wounded in one layer and to provide proper support for the rope to minimize abrasive wear is provided. Drum shaft resolves on ball bearings for ensuring smooth running.
Electric apparatus controlling system: model cd1 and md1 is composed of the contactor box, controlling switch, cut-off limiter.The working voltage of controlling switch is 380v, 36v or 24v(safety voltage).
Rope guide: rope guide is in two halves, ensuring easy accessibility. It encircles the drum completely so that the rope may not uncoil even when the hoist is in unloaded condition. The rope guides of our company is thicken and dilated, so that it is not easy to be damaged.
Hook: the hook block is tested to 150 % of full load before assembly. The rope sheaves are fully guarded with protective steel casting . All sheaves rotate on ball bearing.The pulley is thicken and dilated than domestic common pulley.
- Product name: Tumi Ishi Wood Rock
- Color: Natural wood color
- Material: Pine Wood
- Shape and Size: Random
- Type: Other Educational Toys
- Usage: Relax and Educate
What are Tumi Ishi Wood Rocks?
Tumi Ishi wood rocks are an open-ended wood toy that will provide hours of relaxing, and challenging fun. These handmade blocks are great for boosting focus, and attention, and for promoting creativity
Tumi Ishi wood rocks are handmade and unique (no two blocks are the same). The blocks measure approximately 2 to 4 inches, and the weight of each block varies depending on the wood species
