Bring the actual powder and bag into selection
Hangzhou Jingcheng Automatic Control Engineering Co., Ltd. describes manufacture of weighing, packaging, conveying and automatic batching equipment, with integrated powder lines among its offerings. [1] Its CJD50-FL screw-fed valve-bag machine explicitly lists dry powder mortar, calcium carbonate, bentonite and other powders as applications. [2] This page concerns building-material production equipment; it does not classify the supplier as an excavator or concrete-pump manufacturer.
The CJD50-FL source distinguishes a semiautomatic base machine from optional anti-bridging, automatic discharge, open-bag fixture and automatic bag-placement additions. The optional list is not the standard included configuration. Compare quotations at the same boundary.
Mark every handover between powder and packaged product
The company introduction describes systems from drying, milling and screening through storage, batching, mixing, packaging and conveying. That is a supplier scope statement, not proof that every stage is included or built by the same legal entity. Release a project-specific responsibility map.
| Handover | Define it | Confirm responsibility |
|---|---|---|
| Feed to packer | Material condition, inlet geometry and required supply continuity. | Hopper/feeding ownership, isolation, bridging response and interface drawing. |
| Dust extraction | Proposed extraction conditions and dust assessment for the real material. | Ducting, extraction plant, captured-material handling and performance acceptance. |
| Filled bag | Accepted net mass, bag condition and removal/closure sequence. | Bag support, discharge, conveyor and closure equipment included. |
| Control handover | Recipes, interlocks, records and other line controls. | Software, electrical integration, drawings and commissioning owner. |
Do not treat a packer’s listed extraction connection as a supplied dust collector or proof of exposure control. Have the actual powder hazards, dust equipment and site requirements reviewed by competent personnel. No zero-emission or explosion-protection claim is established by the reviewed sources.
Measure filled bags under the intended production conditions
- Identify the batch: retain powder condition, bag type and target fill.
- Run the proposed configuration: record screw settings, loading/feeding, utilities and any selected options.
- Check the filled product: record net mass with agreed reference equipment and inspect bag integrity, closure and material loss.
- Observe the full cycle: include operator actions, bag removal and downstream handling when comparing throughput.
- Release the result: agree acceptable variation, test population, trial record and conditions that require a new trial.
The published accuracy is expressed as ±0.2% F.S and qualified by material uniformity and packing speed. It must not be silently rewritten as a percentage of every target fill. Ask the supplier to define the full-scale basis and accepted net-mass result for each intended fill.
OIML R61 describes metrological requirements for automatic gravimetric filling instruments producing predetermined fills. [5] It provides a framework for discussing measurement, not evidence that CJD50-FL has a particular class or certification. Confirm destination requirements with the appropriate parties.
Separate business history from the current contract
Business-registration data records the exact current company on 12 April 2006 at Yue shuai Bridge, Gongshu, Hangzhou. The official introduction says its business began in 1991; the reviewed sources do not establish the full predecessor relationship. The current official contact is 13 Qingquan Road, Lin’an, Hangzhou. [3] Neither address is represented as a platform-audited factory.
The registered business scope lists equipment sales/software, while the website describes manufacturing and integration. Require the current quotation issuer to identify the actual manufacturing site, responsible entity and any subcontracted scope before supplier approval. Do not treat an industry classification as factory inspection.
The original CN103569684B publication identifies the same company as applicant for a mortar-packaging system filed in 2013. [4] That supports a historical engineering connection to mortar equipment, not present production capacity or proof that the patented arrangement is fitted to CJD50-FL. The displayed record reports fee-related expiry; no active-patent claim is made.
Broad installed-line capacity and patent-count statements on the website are not adopted as audited capabilities.
Ask for a trial and a bounded line proposal
Sources for this company
- Jingcheng company introduction
Self-described equipment manufacture and powder-line integration; historical1991 statement differs from current entity registration.
Checked: 2026-10-11 - CJD50-FL official specification
Screw feeding, dry-mortar application, semiautomatic sequence and optional automation.
Checked: 2026-10-11 - Official contact record
Exact entity name, QingquanRoad13 contact address and private-source mailbox.
Checked: 2026-10-11 - CN103569684B original patent publication
2013 mortar-equipment application attributed to the exact company; not evidence of current production capacity or CJD50-FL embodiment.
Checked: 2026-10-11 - OIML R61-1:2017 scope and terminology
General gravimetric-filling metrology context; no certification or accuracy-class assignment to Jingcheng.
Checked: 2026-10-11