What is the standard raw material mix ratio for concrete blocks?

Standard mix: 86% aggregate + 8% cement + 6% water Detailed breakdown: Sand: 43% Crushed stone (gravel): 43% Cement: 8% (P.O 32.5 or 42.5 grade) Water: 6% For higher strength blocks (load-bearing or heavy traffic paving): increase cement to 10-12%. Colour paving block face mix: 46% sand + 46% cement + 2% pigment + 6% water.

What installation support do you provide after I receive the machine?

We provide complete installation support in three ways: Pre-shipment testing 1. : Before shipping, we install all components, run the complete production cycle, and send you a full testing video and photos. You only approve shipment after confirming the machine works perfectly. Installation manual + video 2. : We provide a step-by-step English installation manual and operation video. You can install and operate the machine by following these guides. Online support 3. : Any question during instal

Qt4-35 Semi Automatic Hollow Block Machine Concrete Block Making Machine Manufacturer

Name: Qt4-35 Semi Automatic Hollow Block Machine Concrete Block Making Machine Manufacturer
Brand: Qingdao Darifeng Machinery Co., Ltd.
SKU: 2189693402

Shandong, ChinaQingdao Darifeng Machinery Co., Ltd.

US$4,800.00

1 Piece

Product specifications

Production Capacity

Model Number

Power

Product profile

Customization

Available

After-sales Service

Yes

Warranty

2 Years From The Date of Delivery

Model NO.

QT4-35

Certification

CE, ISO

Customized

Automatic Grade

Semiautomatic

Type

Vibration Molding

Main Vibration Form

Platform Vibration

Cycle Time

25-40 Seconds

Vibrating Frequency

2304-3840 Rolls/Minute

Motors Power

9.7kw

Pallet Size

880X550X20mm

Excitingn Force

50kN

Color

Blue, Green, Grey, Red, Can Customized

Weight

1700kgs

Transport Package

Containor

Specification

1360x1650x2660mm

Trademark

Darifeng

Origin

Qingdao, China

HS Code

8474802000

Production Capacity

2304-3840PCS/8hours

Key features

Semi-automatic operation with automatic material feeding: the mould box is filled automatically every cycle, reducing labour intensity and requiring only 2-3 workers for the whole line.

4 blocks per mould and a 25-40 second cycle, delivering 2,880-3,840 pcs of 400x200x200mm hollow block per 8-hour shift, up to 6,720 pcs with 400x100x200mm moulds.

50KN platform vibration at 2,800-4,500 r/min, driven by 1 x 3KW top vibrator and 2 x 2.2KW bottom vibrators, keeps density and strength uniform across all 4 cavities.

One machine, 63+ block types: 28 hollow/solid blocks, 28 paving blocks and 7 curbstones, with interchangeable moulds that can be changed on site without specialist tools.

Compact and rigid build: 1,700 kg frame, 11.8KW total power, 880x480mm pallet, 1,360x1,650x2,660mm footprint, fits easily into a small block plant.

Complete line included: JQ350 mixer (560L input / 350L output, 5.5KW, 15m3/h), 6m electric-roller belt conveyor (1.2KW) and dedicated trolley for continuous material supply.

Low raw material cost: fly ash, cinder, slag, gangue and other industrial waste can partly replace aggregate; standard mix is 86% aggregate + 8% cement + 6% water.

Manufacturer since 1985, CE and ISO 9001 certified, 2-year warranty on core mechanical components, MOQ 1 set, English operation manual included.

100% pre-shipment production test with video and photos sent for confirmation, one free complete spare parts kit, and 24-hour response via / WhatsApp / Email.

Fast delivery: 15-20 working days after deposit, shipped LCL or in a 20ft FCL from Qingdao Port, with free video installation guidance.

Company profile

Full CustomizationFast DeliveryImporters and ExportersExperienced Team

Qingdao Darifeng Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤6.92h CertifiedTerms of Payment: LC, T/T, D/P, etc.

About Our Factory & Business Background

AddressNo.259 Tieqishan Road, chengyang District, Qingdao, Shandong, China

Registered Capital1,000,000 RMB

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Pc

Supply Chain Partners3

Our Production Capability & Technical Expertise

Main ProductsConstruction machinery and equipment

Our Industry Experience & Global Business Record

Year of Establishment2019-08-29

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, Africa

Repeat Buyers Choice50%~80%

Product Q&A

Q:What types of bricks can the machine produce?

It can make hollow blocks, solid blocks, interlocking blocks, paving blocks, curbstones, and so on. We can also customize the moulds according to your requirements.

Q:Can the moulds be customized?

Yes we can customize the moulds according to the bricks that you need.

Q:How long is the delivery time?

Normally need about 20-30 days

Q:What is the machine warranty?

2 years from the date of delivery

Q:Do you provide installation and training?

We will provide machine installation manual and videos. If clients require send engineer, we also can send engineer to help clients do the installation and training