4.9/5 - (30 votes)

Manual scoring for hard-shell macadamia nuts is slow and creates uneven cuts. It causes up to 18% kernel breakage during shelling and makes consistent whole-kernel production difficult.

This automatic macadamia nut opening machine delivers controlled circular shell cuts with an hourly capacity of 50–90 kg. Precision depth control keeps kernel breakage below 5%. It offers pneumatic standard and servo-programmable versions for small and medium nut processing plants and orchard cooperatives, cutting labor costs and boosting whole kernel yield.

See the macadamia nut opening machine running, cutting neat slits on nuts for automated nut processing.

Precise controlled scoring for lower kernel damage

  • Cuts uniform grooves along nut shell circumference to reduce shell stress for easier cracking.
  • Adjustable cutting depth, fits macadamia nuts with varying shell thickness and prevents kernel injury.
  • Servo model saves preset cutting angle, depth and speed; one-click parameter switch for different nut varieties.
  • More consistent cuts than manual scoring, raising ratio of export-grade whole kernels steadily.

Two models available to suit different production scales

Pneumatic Basic Model

  • Simple and durable structure with easy maintenance.
  • Powered by single-phase 220V electricity.
  • Ideal for medium & small processing factories and small-scale orchards.
  • It features fixed cutting parameters for basic slot-cutting production.

Servo Ring-Cutting High-End Model

  • Adopts servo motor + PLC touchscreen control.
  • Supports storage of multiple processing formulas, powered by three-phase 380V electricity.
  • Capable of continuous mass production with visually adjustable parameters.
  • It enables quick switching when fruit varieties change frequently.

Macadamia nut opening machine technical specifications

ParameterPneumatic Model (XGKK-10)Servo Circumferential Cutting
Model (XGKK-21)
Pasokan Listrik220V/50Hz, Single Phase380V/50Hz, Three Phase
Main Motor Power2.2KW3KW, total 1.95KW for dual servo motors
Hourly Output50kg (100 lbs)90kg (180 lbs)
Berat Bersih200kg450kg
Gross Weight250kg500kg
Dimensi Keseluruhan1200×700×1100mm1500×950×1150mm
Ukuran Pengemasan1350×850×1300mm1650×1100×1350mm
Cutting AngleFixedAdjustable, max 330°
Cutting DepthDapat disesuaikanProgrammable & adjustable
Cutting SpeedFixedProgrammable & adjustable
Sistem KontrolPneumatic mechanical controlPneumatic-electric hybrid +
touch screen PLC
Note: Servo 180 model: max opening angle 200°; 320 model: up to 330°. Custom opening angles are available on request.

Macadamia nut opening machine suitable scenarios

  • Macadamia farming cooperatives: On-site pre-processing for orchard nuts for export sales.
  • Small & medium nut factories: Replace manual cracking, boost whole kernel rate and cut labor cost.
  • Nut deep-processing plants: Pair with shelling & sorting machines for full macadamia production lines.
  • Nut export suppliers: Process export-grade macadamia to meet overseas quality standards.

Conditions to confirm before model selection

  • Daily processing output, macadamia variety and shell thickness
  • Workshop power supply: single-phase 220V or three-phase 380V
  • Required cutting angle (cutting arc)
  • Frequent switching between different nut sizes or not
  • Matching with subsequent shelling, color sorting equipment or not

Equipment operation and daily maintenance tips

  • Feeding: Feed nuts evenly; remove deformed nuts to prevent jamming
  • Cutting adjustment: Set cutting depth according to shell thickness; test before mass production
  • Regular inspection: Check blade wear; replace blunt blades promptly
  • Cleaning & maintenance: Clear nut debris after operation; stainless steel surfaces easy to rinse
  • Storage & movement: Equipped with casters for easy relocation; protect against rust for long-term storage

Supporting equipment recommendations

  • The macadamia nut opening machine integrates seamlessly into complete nut processing lines.
  • Match with nut grader, sheller, shell-kernel separator, and color sorter.
  • Realize one-stop workflow: grading, scoring, shell breaking, separation and finished product sorting.
  • Ideal for automated macadamia processing plants to boost efficiency.

Upgrade your macadamia nut processing line with our durable nut scoring machine and full set of supporting processing equipment. Whether you run a small workshop or a large commercial nut factory, we can customize matched machinery according to your output requirements. Reach out to our team now for detailed quotations and professional production layout suggestions.