For bulk‑material packaging scenarios in industry, semi‑automatic ton‑bag packaging machines, granular ton‑bag packaging machines and ton‑bag vacuum packaging machines serve as critical equipment for manufacturers of powder and granular materials to complete big‑bag filling. With the expansion of production scale across various industries, many enterprises expect stable metering, tidy working sites and high equipment adaptability in ton‑bag packaging procedures. Original manufacturers of packaging production lines keep optimising equipment solutions to satisfy production demands under different working conditions. Deeply engaged in the packaging‑equipment sector with 27 years of industry accumulation, Guangzhou Marchi Packaging Equipment Co., Ltd. provides type‑selection and implementation support for various ton‑bag packaging equipment including granular ton‑bag packaging machines, semi‑automatic ton‑bag packaging machines and ton‑bag vacuum packaging machines, meeting packaging‑line renovation demands of industrial manufacturers in different regions.
The Marchi MCJBP‑1000CS carbon‑steel ton‑bag packaging machine is a semi‑automatic ton‑bag packaging machine adopting the gross‑weight weighing and metering method. The flexible intermediate bulk container (FIBC) is hung on the weighing platform for rapid material filling. The whole machine mainly consists of feeding device, weighing platform, lifting mechanism, bag‑hanging‑and‑releasing / bag‑clamping device, air‑inflation / air‑return‑and‑vent pipelines and steel structural frame. It is compatible with multiple granular materials such as quartz sand, ore granules, plastic pellets, fertiliser granules, inorganic‑salt granules, carbon‑black granules, sand‑stone aggregates, new‑energy granular raw materials, grain granules, chemical granules and mineral‑powder granules. It also works for part of free‑flowing powder materials, realising ton‑bag packaging operations for chemical, building‑material, mineral, new‑energy, grain‑and‑oil‑processing and other industries.
The feeding device features a double‑screw feeding structure. Feeding relies on material self‑weight, and feeding flow rate is set via frequency‑conversion speed regulation with independent parameter adjustment available. A shut‑off butterfly valve is fitted at the outlet of the single‑arc feeding gate to enhance controllability of material output and reduce packaging‑accuracy fluctuation and material spillage caused by residual material dropping. Equipped with a specialised pneumatic shifting fork mechanism, the machine mitigates arching and bridging of powder materials in the feeding zone and ensures stable feeding during operation of the granular ton‑bag packaging machine.
The weighing platform is fitted with weighing sensors featuring good overall accuracy, excellent long‑term operational stability and high shock resistance. Together with a dedicated force‑transmission connecting mechanism, it provides multiple‑protection functions including overload and limit protection. It guarantees complete transfer of bag weight to weighing sensors, reduces interference from component forces in other directions, delivers favourable mechanical automatic reset performance and supports continuous and stable metering of the semi‑automatic ton‑bag packaging machine.
The lifting mechanism is fixedly mounted on the weighing platform and comprises cylinder lifting assembly, four guiding units and other components. During filling, it can perform multiple up‑and‑down movements for the weighed bag according to actual material filling status on‑site to optimise material filling inside the bag. Upon completion of weighing, the lifting mechanism lowers the filled heavy bag down to ground level or floor pallet. The bag changes from upper‑hanging status to bottom‑supported status, facilitating orderly subsequent procedures such as bag‑mouth release and sling unhooking. It also meets station‑switching requirements when matched with ton‑bag vacuum packaging machines.
The bag‑hanging‑and‑releasing / bag‑clamping device is installed at the cylinder bottom of the lifting mechanism, with force transmitted to the weighing platform. This device adapts to packaging‑bag dimensional variations within the nominal volume range of 1200‑1400 L. In operation, empty‑bag slings can be hung manually and the bag mouth is pneumatically clamped. After packaging completion, the filled heavy bag drops, the bag mouth is automatically loosened and slings are automatically unhooked, compatible with FIBCs of various specifications. The main body of the whole machine adopts carbon‑steel structure with sufficient overall strength and rigidity to ensure stable operation of the weighing platform. Parts in contact with materials are made of 316L material, suitable for packaging working conditions of partial granular and powder materials requiring corrosion resistance.
Operating parameters of Marchi MCJBP‑1000CS carbon‑steel ton‑bag packaging machine: packaging accuracy ±0.1%‑±0.3%; packaging speed 5‑6 bags per hour (actual output subject to weighing weight and material characteristics); packaging weight range 400‑600 kg; total machine power 2.45 kW; applicable power supply: AC380V 50Hz.
For working conditions requiring air‑tight degassing and vacuum pumping, ton‑bag vacuum packaging machines perform air‑extraction treatment after granular‑material filling to lower air proportion inside bags and reduce overall ton‑bag volume for convenient material storage and transportation. They can be combined with granular ton‑bag packaging machines and semi‑automatic ton‑bag packaging machines to form complete packaging production lines.
Drawing on years of practical industry experience, Guangzhou Marchi Packaging Equipment Co., Ltd. carries out corresponding adaptive adjustments for semi‑automatic ton‑bag packaging machines, granular ton‑bag packaging machines and ton‑bag vacuum packaging machines according to different material properties and on‑site workshop conditions. It delivers comprehensive equipment implementation support covering early‑stage working‑condition communication, solution sorting‑out, equipment manufacturing and later‑stage on‑site commissioning guidance, helping enterprises optimise ton‑bag packaging procedures and satisfy production‑and‑packaging demands for various bulk granular and powder materials.
