Full Technical & Pricing Reference · Die Casting Plunger Tips

SKD Separable vs BeCu
Complete Comparison Guide

Field-tested performance data, pricing, regional usage trends, and cooling analysis for die casting plunger tips — 12-second cycle operation.

Molten Metal 660–680°C
Cycle Time 12 seconds
Preheated Start ~150°C
Cooling Water + Sleeve
Standard Size Ø80 reference
Material Specifications
SKD Separable vs BeCu — Tip Performance
SKD Separable
Our Product — Development Purpose
Hardness
46–50 HRC
Cooling Time
6 sec
Peak Contact Temp
~360 °C
Post-Shot Temp
230–330 °C
  • Optimal range: 150–250°C
  • Critical threshold: >~450°C (cleaning pressure drops)
  • Maintenance: Easier than BeCu during operation
  • Sleeve min temp: 330°C or lower
  • Prevents sticking; faster thermal conductivity than barium tips
  • Combines advantages of BeCu and ceramic tips
  • Cooling designed to prevent seizure — near-zero sticking incidents
BeCu (Beryllium Copper)
Standard Reference Tip
Hardness
36–40 HRC
Cooling Time
8 sec
Peak Contact Temp
~330 °C
Post-Shot Temp
250–400 °C
  • Optimal range: 150–250°C
  • Optimal (thermal shock): 150–200°C
  • Critical threshold: >300–400°C (hardness drops)
  • Overheating → deformation, wear, possible seizure
  • High thermal expansion — caution required at setup
  • Grades: C17510 (low-cost, good conductivity) / C17200 (high hardness + lifespan)
⚠ Caution Lifespan halved if cooling efficiency drops below 10%. Heat-sensitive — handle carefully. Inconsistent shot counts (700–1,000/batch) reported from Chinese/Indian suppliers; 40%+ defect rate on slotted types.
Cooling Comparison Analysis
Cooling Curves — 12-Second Cycle (5 Tip Types)
Temperature vs. Time
Water cooling + sleeve cooling under standard operating conditions
1. SKD Integrated (Solid)
2. FC Gray Cast Iron
3. Detachable FC Plunger Tip (Our product)
4. BeCu
5. Detachable SKD Plunger Tip (Our product)
3 sec
Detachable SKD reaches ~120°C — fastest cooling of all 5 types
4 sec
BeCu reaches ~140°C — slower than both detachable types
Slowest
SKD Integrated type — poor cooling, seizure risk above 300°C
Our Product Lineup
Product Summary — All Types
Our Product
SKD Alloy Separable
Combines best of BeCu and ceramic tips. Faster cooling than BeCu, better pressure, stable shots. Cooling-designed to prevent seizure issues of SKD integrated type.
Our Product
FC Body + Thermal Spray Coating Tip
Better cooling than standard FC integrated type. Suited for high-speed operation and large machines. Widely used in Korea. ~20,000 shots.
Our Product
FC Body + SKD Ring Type
Better cooling than standard integrated type. 170–200°C stable pressure. Good for mid-size and smaller machines. ~20,000+ shots.
Our Product
FC Separable Type
Excellent cooling — nearly equivalent to BeCu. Ideal for Southeast Asian markets. Shot life ~5,000–6,000. Cost-effective entry option.
Reference
BeCu Standard
~70% market share in Europe/North America. High conductivity with C17200 grade. Sensitive to heat — requires careful cooling management.
Reference
SKD Integrated (Solid)
Cheaper than BeCu, good hardness and lifespan, but major cooling weakness. Seizure above 300°C can cut connecting rods and injection rods — 15-day repair downtime.
Pricing Reference
Market Pricing Overview

BeCu Ø80 Plunger Tip — average market pricing (minor variation by supplier)

GradeMaterial / StructureAvg Shot LifeAvg Price (KRW)
기본형 BasicBeCu (C17500)1,500–3,500150,000–260,000
표준형 StandardBeCu (C17200)4,000–6,000250,000–350,000
고급형 PremiumBeCu + Slot5,000–8,000350,000–450,000
수냉형 Water-CooledBeCu + Water Cooling8,000–12,000450,000–650,000
혼합형 HybridSteel + BeCu Ring10,000–15,000400,000–650,000
고내구형 High-DurabilitySteel + Co-Cu Ring15,000–25,000600,000–850,000
코팅형 CoatedBeCu + PVD/DLC12,000–20,000500,000–750,000

* Processing precision: budget 0.02–0.03mm tolerance / premium 0.01mm tolerance — significant price impact

High-grade improved products — price increases with cooling, slot, coating, and machining options

SizeØ70Ø80Ø100
Price (New)600,000–900,000 ₩800,000–1,200,000 ₩1,500,000–2,500,000 ₩
Avg Shot Life40,000–60,00050,000–70,00060,000–100,000

* Shot count and price increase significantly with added cooling, slot, coating, and precision machining

Thermal Spray Coating Tip
FC body, our product
~28,000 ₩
~20,000 shots
SKD Separable Type
Body 25,920 ₩ + Cap 54,666 ₩
~80,586 ₩
50,000+ shots
SKD Ring Type
Standard market pricing
150,000–300,000 ₩
20,000+ shots
Basic BeCu (Slot Type)
Low-end / budget
30,000–70,000 ₩
Low shot life
Custom / High-End BeCu
Premium order-made
1,800,000+ ₩
Custom shot targets
Oil (per 1L)
Affects sleeve & tip lifespan
4,000–20,000 ₩
Mid: 10–20k / Budget: 4–8k (sludge risk)
Global Market
Regional Tip Usage Characteristics
🇪🇺🇺🇸 Europe & North America
BeCu70%
SKD30%
🇯🇵 Japan
SKD40%
FC Cast Iron30%
BeCu20%
🇮🇳 India
FC Cast Iron70%
FC Slot Type30%

Imports from China & Japan

🇵🇰 Pakistan
FC Cast Iron80%
FC Slot Type20%
🇲🇾🇮🇩🇹🇭 SE Asia
Japan / Europe importsMajor
China (partial)Minor

Foreign die casting factories only

🇰🇷 Korea
FC Spray CoatingHigh
SKD SeparableGrowing

FC spray coating tip widely adopted

Summary
Head-to-Head Comparison
ParameterSKD SeparableBeCuAdvantage
Hardness46–50 HRC36–40 HRCSKD +25%
Cooling Time to Stable6 seconds8 secondsSKD faster
Peak Contact Temp~360°C~330°CBeCu lower
Post-Shot Temp230–330°C250–400°CSKD tighter range
Critical Threshold>~450°C (pressure drop)>300–400°C (hardness drop)SKD higher ceiling
Seizure / Sticking RiskNear zero (cooling design)Moderate if overheatedSKD safer
MaintenanceEasier during operationHeat-sensitive, high careSKD simpler
Shot Life (Ø80 high-grade)50,000+ shots8,000–25,000 (grade-dependent)SKD longer
Price (Ø80 reference)~80,586 ₩150,000–850,000 ₩ (grade)SKD lower cost
Thermal ExpansionNormalSlightly high — setup cautionSKD safer
Supply ReliabilityStableInconsistent from CN/IN (40%+ defect)SKD more consistent