Factory-Direct MCT Systems

Multi Cable Transit Systems Built Around Your Project.

We are the manufacturer. Source cable transit frames, rectangular sealing modules and circular assemblies for your project. Share your opening dimensions, cable schedule and performance requirements for a configuration review.

Request a Free Sample Get Cross-Reference Table

38+

Granted patents

IP68

Confirm test scope

A-60

Confirm assembly rating

2013

Factory established

DEWIN modular cable sealing demonstration — Product Modular cable seal

DEWIN factory production line manufacturing cable transit frames and sealing modules — Own factory · Shaanxi

Designed and manufactured in-house -- not a trading company.

The problem with single-brand supply

Your engineering team already knows the frustration.

Price locked in

Established European brands charge a premium that no longer reflects the component's actual cost -- and your margin absorbs the difference.

Lead times slip

Single-source dependency means every allocation delay upstream becomes a delay on your container build schedule.

No leverage

Without a qualified second source, there is no negotiating position -- and no backup if the primary supplier fails to deliver.

Talk to Our Engineering Team

Product specification

Modular sealing systems, selected by size and application.

Compare S1 / S2 / S3 rectangular sealing modules, CR circular assemblies and transit frames. The selected model must match the cable range, opening and complete sealing configuration.

Model	Product size	Cable range	Depth / opening	Material
M20S1	20 × 20 mm module	4–14.5 mm	60 mm depth	EPDM + silicone diaphragm
M40S1	40 × 40 mm module	21–32 mm	60 mm depth	EPDM + silicone diaphragm
CR75	Circular assembly	24–54 mm	Ø76 mm opening	Material to order

Full range and custom sizes available. Test reports supplied on request.

Request Full Datasheet

Second-source qualification

Check the full interface before switching supplier.

Compare your current drawing with a proposed DEWIN configuration. Opening size alone does not establish interchangeability or performance.

Existing requirement	Candidate family	Drawing input	Review required
Rectangular cable entry	S1 / S2 / S3	Module layout and depth	Frame pairing
Welded frame opening	RWF30R / RWF50R	Opening and mounting details	Envelope and fixing
Round penetration	CR series	Opening and cable diameter	Sleeve and test scope

Send Us Your Current Frame Size

Certification & compliance

Check the document scope for your application.

Standard	Scope	Status
ISO 9001	Request current factory scope	Scope to confirm
IATF 16949	Request current factory scope	Scope to confirm
Fire rating A-0/A-60	Sealing modules	Documents on request
RoHS / IP68	Rubber compounds & sealed assemblies	Scope to confirm

Ask for the current document, issuer, validity and covered factory or model. Approval of one product or factory does not extend to every assembly.

Built for your industry

Wherever cables cross a sealed boundary.

Energy storage

BESS containers

Sealed entries between battery and control compartments, rated against dust, water, and fire spread.

MCT sealing modules in a modular data center wall panel

Data centre

Modular halls

Dense penetrations through prefabricated panels, re-openable for later capacity additions.

Switchgear

Control panels

Confirm the opening, mounting and sealing configuration before changing supplier.

Discuss Your Application

Why sourcing managers switch

A factory built to back a global rollout, not just a single order.

RMB 50 million registered capital across factories in Shaanxi, Shandong, and Hunan -- capacity that scales with your rollout.

38+ granted patents, including 21 invention patents, backing the step-core module design.

In-house mold making for custom sizes, without third-party tooling delays.

Dedicated export sales team serving overseas clients in English, with fast technical response.

OEM / private label

Your brand, our factory.

We support OEM and private label discussions for MCT systems. Confirm the selected products, branding, documentation and commercial scope before ordering.

Ask About OEM Terms

How qualification works

Four steps from enquiry to qualified second source.

Step 01

Share your frame size

Send us your current model or drawing.

Step 02

Get a cross-reference

We match it to a DEWIN equivalent and quote.

Step 03

Receive a free sample

Validate fit and performance in-house.

Step 04

Qualify & order

Move to production volumes with stable lead times.

Free validation sample

Test it on your own line before you commit.

Free samples, dimensioned drawings, and CAD/STEP files -- sent so your engineering team can verify fit before a purchase order is raised.

Request Free Sample Request CAD Files

Send an enquiry

Attach a drawing. We'll confirm fit before we quote.

Our export sales team replies within one working day, in English, from an engineer. Send us your frame size or existing model number and we'll cross-reference the equivalent DEWIN part.

Free validation sample

No-cost sample for fit and material testing before you commit.

Cross-reference table

Existing model → DEWIN equivalent → dimensioned drawing.

Test documents on request

Request the applicable test documents for the proposed assembly.