ZKJ31-12 Air Needle Scalers

ZKJ31-12 Air Needle Scaler

The ZKJ31-12 Air Needle Scaler is a compact and lightweight tool engineered for precision surface preparation in tight or delicate applications. Featuring a durable composite straight handle for reduced weight and enhanced operator comfort, this model is equipped with 12 high-strength steel needles, making it perfect for detail cleaning, rust removal, and paint stripping on smaller or more intricate surfaces. Ideal for automotive repair, industrial maintenance, and fabrication work, the ZKJ31-12 combines portability, efficiency, and ergonomic design to deliver reliable performance in daily use.

SKU: ZKJ31-12 Category: Air Needle Scaler and Air Chisel Scaler Tag: Air Needle Scaler

ZKJ31-12 Air Needle Scaler – Composite Straight handle

 

 

The ZKJ31-12 Air Needle Scaler is a compact and lightweight tool engineered for precision surface preparation in tight or delicate applications. Featuring a durable composite straight handle for reduced weight and enhanced operator comfort, this model is equipped with 12 high-strength steel needles, making it perfect for detail cleaning, rust removal, and paint stripping on smaller or more intricate surfaces. Ideal for automotive repair, industrial maintenance, and fabrication work, the ZKJ31-12 combines portability, efficiency, and ergonomic design to deliver reliable performance in daily use.

 

 

Key Features

 

 

Composite Straight Handle
Lightweight yet rugged handle construction reduces tool weight and operator fatigue.

12 Steel Needles
Optimized for precision tasks, ensuring controlled cleaning without over-aggressiveness.

Compact Design
Slim profile for working in tight or confined spaces.

Durable Construction
Engineered for consistent use in industrial environments.

Straight Handle Control
Provides balance and precision, particularly for overhead or detailed applications.

Air-Powered Performance
Delivers steady cleaning power without overheating.

 

 

Benefits

 

 

  • Precision Cleaning: With 12 needles, it’s ideal for smaller-scale or detailed applications.

  • Lightweight & Ergonomic: Composite handle reduces operator fatigue during extended use.

  • Compact & Versatile: Easily fits into confined or hard-to-reach areas.

  • Reliable & Durable: Built to withstand daily use in demanding environments.

  • Operator-Friendly: Straight handle ensures balance, control, and ease of maneuverability.

 

 

Applications

 

 

  • Automotive: Rust and paint removal from small body panels, frames, and components.

  • Metal Fabrication: Cleaning light welds, scale, and slag from smaller structures.

  • Construction: Surface prep on rebar, beams, and smaller concrete elements.

  • Marine & Shipbuilding: Ideal for confined areas requiring precision cleaning.

  • Industrial Maintenance: Detail rust and paint removal in workshops and factories.

 

 

Why Choose the ZKJ31-12 Air Needle Scaler – Composite Straight Handle?

 

 

The ZKJ31-12 is the perfect choice for professionals who require a compact, lightweight, and precise needle scaler for everyday use. Its 12-needle configuration provides controlled cleaning power, while the composite straight handle enhances operator comfort and reduces fatigue. Whether used in automotive repair, fabrication, or industrial maintenance, the ZKJ31-12 offers excellent versatility and reliability, making it an essential tool for detailed surface preparation tasks.

 

 

 

Features & Benefits

 

 

  • Needle scaler for industrial application
  • Sturdy and simple design for heavy and wide applications
  • Superior design with internal spring components provides greater durability

 

 

 

 

Specification:

 

 

  • Number of Needles: 12 pcs
  • Piston Diameter:0.8(20) inch(mm)
  • Piston Stroke: 1.06(27) inch(mm)
  • Needle Diameter: 1/8×7(3×180) Øinch(mm)
  • Blows Per Min.: 4000 bpm
  • Avg. Air Cons.: 4(115) cfm(l/min)
  • Overall Length: 13.6(345) inch(mm)
  • Net Weight: 5.3(2.4) lbs(kgs)
  • Min. Hose Size: 3/8(10) inch(mm)
  • Air Inlet Size: 1/4 inch-NPT/PT

 

Model Number of
Needles pcs		 Piston Diameter
inch(mm)		 Piston Stroke
inch(mm)		 Needle Diameter
Øinch(mm)		 Blows Per Min.
bpm		 Avg. Air Cons.
cfm(l/min)		 Overall Length
inch(mm)		 Net Weight
lbs(kgs)
ZKJ27 19 0.6(16) 0.6(16) 5/64×7(2×180) 4000 2.5(70) 11.2(285) 3.5(1.6)
ZKJ31-12 12 0.8(20) 1.06(27) 1/8×7(3×180) 4000 4(115) 13.6(345) 5.3(2.4)
ZKJ31-27 27 0.8(20) 1.06(27) 5/64×7(2×180) 4000 4(115) 13.6(345) 5.3(2.4)
ZKJ35-23 23 0.94(24) 1.06(27) 1/8×7(3×180) 4000 7(198) 13.2(335) 6.2(2.8)
ZKJ35-53 53 0.94(24) 1.06(27) 5/64×7(2×180) 4000 7(198) 13.2(335) 6.2(2.8)
ZKJ39-14 14 1.1(28) 1.1(28) 5/32×7(4×180) 3500 7.4(210) 13.8(350) 7.9(3.6)
ZKJ39-28 28 1.1(28) 1.1(28) 1/8×7(3×180) 3500 7.4(210) 13.8(350) 7.9(3.6)
ZKJ39-66 66 1.1(28) 1.1(28) 5/64×7(2×180) 3500 7.4(210) 13.8(350) 7.9(3.6)
ZKJ39A ─ 1.1(28) 1.1(28) ─ 3500 7.4(210) 13.8(350) 7.9(3.6)
ZKJ831 19 0.75(19) 2.7(70) 1/8×7(3×180) 3500 6.6(187) 14.6(370) 6(2.7)
ZNS-1228 12 0.75(19) 1.6(41) 1/8×4.9(3×126) 2800 2.1(60) 11.6(295) 2.4(1.1)
ZNS1919 19 0.75(19) 1.6(41) 1/8×7(3×180) 4000 7.4(210) 12(305) 4.9(2.2)
ZNS1919C 19 0.75(19) 1.6(41) 1/8×7(3×180) 4000 7.4(210) 13(330) 4.9(2.2)
ZNS-4111 13 ─ ─ 0.051(1.3) 3000 1.68(48.1) 9.28(235.6) 1.06(0.48)
  • Min. Hose Size: 3/8(10) inch(mm)
  • Air Inlet Size: 1/4 inch-NPT/PT

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