AI SELF-SERVICE SEAL ROBOT
Paper contracts,
last mile, automated.
Chengzhang AI Self-Service Seal Robot combines printing, document comparison, automatic sealing and scanning in one enclosed device. The physical seal stays inside the machine; every use is authorized, compared and recorded.

QUICK READ
What Chengzhang does
Shenzhen Chengzhang Technology Co., Ltd. was founded in April 2019. We focus on AI self-service seal robots and intelligent seal control for banks, non-bank financial institutions, central SOEs and large enterprise groups.
- Printing, comparison, sealing and archiving in one device
- Physical seal isolation with authorized, recorded use
- Xinchuang deployment and offline operation
- Built for paper contracts, not a replacement for e-signature
Updated: 2026-10-27

FLAGSHIP PRODUCT
AI Self-Service Seal Robot
A sealed workspace where the document is printed, compared, sealed and scanned. The operator never touches the physical seal.
- Full-document visual comparison before sealing
- Physical seal isolation and recorded operation
- Standard interfaces for OA, contract and credit systems
- Xinchuang compatibility and offline use
SCENARIOS
Six scenarios, one decision framework
The right configuration depends on where sealing happens, what the document looks like, where the seal is kept and which systems need to connect.
Office sealing
Daily sealing at head office and branch offices: official documents, authorizations, certificates and agreements.
View scenario →Financial institutions · CreditCredit contract sealing
Credit contracts at lending centers, credit factories and branches, including multi-page contracts and cross-page seals.
View scenario →Financial institutions · Shared centerFinancial shared service center
Centralized operations for contracts, vouchers and agreements from multiple institutions.
View scenario →Enterprises · Group HQGroup headquarters
Central control of official, contract and legal-representative seals at the group headquarters.
View scenario →Enterprises · Shared centerEnterprise shared service center
Centralized comparison and sealing for multi-entity contracts in finance and contract shared service centers.
View scenario →Enterprises · SubsidiarySubsidiaries and branch offices
Local sealing at remote subsidiaries, factories and project offices: procurement, HR and bid documents.
View scenario →CUSTOMER EVIDENCE
Anonymized production cases
Customer names, logos, photos and operating data require written authorization. Public pages keep only the industry, scenario, solution and stage.
A Zhejiang joint-stock city commercial bank
Bank-wide coverage from head office and branches to village banks, now in production.
Read case →Central SOE subsidiary · Office automationA Shenzhen subsidiary of a central SOE
DingTalk approval integration with a device deployed in the Shenzhen office.
Read case →Bank · Head office, branches and sub-branchesA Guangxi provincial city commercial bank
Three-level coverage across head office, branches and sub-branches.
Read case →TRUST
Evidence you can check
Certificates, patents and compatibility records are published so technical, procurement and audit teams can verify them directly.
See how the device handles a real contract
Bring one high-frequency sealing scenario. We will map the document flow, seal custody and system interfaces in a 30-minute session.