Liaocheng Mingji Engineering Material Co.,ltd

Self Drilling Rock Anchor Bolt Manufacturer | 15 Years Expertise

Our Products

Self Drilling Anchor Bolt (T/R thread)

Our Self Drilling Anchor Bolts deliver reliable load performance, fast installation, and consistent quality, helping distributors reduce project delays, expand sales, and increase margins with stable, factory-direct supply.

SDA bolt system accessory

Our SDA system accessories ensure perfect compatibility, stable connection, and easier on-site assembly, enabling distributors to offer complete solutions, reduce customer issues, and grow sales with dependable, ready-to-ship inventory.

Our Test Reports

Still Can not Find Out Your Ideal Rock Anchor Bolt?

Simply enter your email address and click “Get your Catalogue.” You will receive a PDF with comprehensive specifications for our Anchor Bolt.

What Set Us Aparts ?

Large Inventory

Over 2,000 tons ready to ship, ensuring distributors never face stockouts or project delays

Factory Direct Price

Direct manufacturing supply allows distributors to secure competitive prices and gain higher profit on every order.

Certificated Quality

Standardized processes deliver stable performance, reducing after-sales issues and improving customer satisfaction.

Stable Production Capacity

30,000-ton annual output guarantees reliable, long-term supply for expanding distributor markets.

OEM/ODM Services

Customized packaging and labeling help distributors strengthen brand presence and win more local market share.

7x24h Engineer Supports

Responsive technical and sales assistance ensures smoother communication, fewer risks, and stronger distributor confidence in every order.

We are Every Step of the Way

About Sdarockbolt

SDAROCKBOLT, located in Liaocheng, Shandong, specializes in Self Drilling Anchor Bolts and complete SDA system accessories. With strong annual capacity, over 2,000 tons of ready stock, and zero MOQ, we provide distributors with fast delivery, stable long-term supply, and factory-direct pricing. Our consistent quality, OEM/ODM support, and reliable restocking help partners reduce procurement risks, secure higher margins, and grow their local markets with confidence.

Step 01: Produce pipe

We use premium steel material and modern Advanced automated equipment to produce pipe ,Ensure stable anchor performance

Step 02: Heat Treatment

Controlled heat-treating enhances strength and durability, ensuring every anchor bolt meets demanding engineering standards.

Step 03: Thread Rolling & forming, then Chamfering and cutting

High-precision rolling machines create uniform threads, ensuring reliable bonding and load capacity for all SDA bolts.

Step 04: Surface Coated & Assembly

Professional coating and finishing protect the anchor bolts from corrosion, ensuring long-term stability in harsh environments.

Step 05: Tensile and Yield tests

Accessories are assembled and inspected under strict SOP standards to guarantee full SDA system compatibility.

Step 06: Packing & Shipping

We pack and ship efficiently to ensure safe transport, fast delivery, and seamless supply for distributors worldwide.

What's Our Customer's Opinion?

"SDAROCKBOLT has become our most dependable source for SDA bolts. Their pricing structure helps us maintain strong margins, and the product consistency has significantly reduced on-site issues. We’ve worked with several suppliers before, but none matched their stability and responsiveness"

John Miller-Procurement Manager, USA

"We chose SDAROCKBOLT for a major tunnel reinforcement project. Their team guided us through technical selection and ensured every accessory matched our existing system. Even under tight deadlines, their delivery schedule remained predictable. A genuinely professional partner."

Emily Roberts,Supply Chain Manager, Canada

"What stands out is SDAROCKBOLT’s product durability in harsh mining environments. Their SDA bolts have performed extremely well in high-humidity underground sections. The reliability of their coating and overall quality has reduced our maintenance downtime noticeably. Highly recommend !"

Carlos Herrera, Senior Project Engineer, Malaysia

"SDAROCKBOLT helped us standardize our anchor specifications across multiple sites. Their engineering support, clear documentation, and fast communication made procurement much smoother. Our installation teams appreciate the uniform thread quality and compatibility with local equipment"