Q: How to confirm the eagle shear matches my excavator perfectly?
A: JIS holds full hydraulic database for Sany, XCMG, CAT, Komatsu and all mainstream brands. Our technical team will match JS280RT or JS450RT according to your excavator tonnage, calibrate pressure, flow and pin distance precisely to prevent host overheating. Any failure caused by operation beyond rated tonnage, pressure and flow will not be covered by warranty.
Q: What advantages does the 2.4s ultra-fast cycle bring to scrap yards?
A: Ordinary scrap shears take over 3.5s per cycle. JS280RT & JS450RT are equipped with patented energy recovery speed valve, only 2.4s per cut. Daily output increases by over 30% under the same fuel and labor cost, shortening ROI greatly. Warranty expires at whichever comes first: 12 months service or 2000 working hours. Warranty period will be halved if daily working time exceeds 8 hours.
Q: What advantages does Hardox450 material bring? What material are the cutting blades?
A: Shell and upper bracket of JS280RT & JS450RT adopt genuine SSAB Hardox450 wear-resistant steel. Cutting edges are made of high-hardness wear-resistant alloy steel. Cheap competitors only paste thin wear plates partially and suffer weld cracks within 3–6 months. Cracked Hardox450 plates can be replaced free within 12 months under proper operation, official SSAB certificates are delivered for customs. Other grabs, compactors and pulverizer shells use domestic NM400 wear steel, only pulverizer teeth adopt Hardox450.
Q: What full warranty & after-sales policies are available for overseas buyers?
A: Global unified 10-30-824 rapid service: 10 mins customer reply, 30 mins technical plan, spare parts dispatched within 8 hours, full troubleshooting within 24 hours.
12-month: shell, upper bracket, slewing bearing, hydraulic motor, cylinders, flow divider, speed-up valve
6-month: dual valve, pinion gear, gear cover, relay
3-month: solenoid valve, handle & foot switch, pivot pins, pipelines
1-month: high-hardness alloy steel blades (only breakage & peeling covered, wear & edge curling excluded)
Consumables (bolts, bearings, grease, fuses) no warranty. Every unit passes 48 lab tests. Warranty only covers factory defects, no compensation for downtime & injuries.
Q: How to choose between JS280RT and JS450RT? What’s overload risk?
A: JS280RT fits 20–28T excavators, max force 2000kN, cuts 16mm plate & 360# H-beam;
JS450RT fits 30–50T excavators, max force 4150kN, cuts 30mm plate & 420# heavy I-beam;
Both Hardox450 shell & alloy steel blades. Oversized shear on small excavator causes shell tear & permanent hydraulic damage, voiding warranty.
Q: Service life & reusability of alloy steel blades? Warranty rule?
A: Double-sided alloy steel blades can be flipped for 3000–5000 hours under normal scrap work. Only 1-month warranty: free replacement for breakage & chunk peeling within 1 month. Uniform wear & edge curling are normal consumable loss, bulk blades available.
Q: Core gap between cheap shears and JISAN JS280RT / JS450RT?
A: Low-cost carbon steel frames with partial thin wear plates crack quickly. JS280RT & JS450RT adopt integrated Hardox450 steel plus alloy blades with SSAB certificates. Cracked plates replaced free within 12 months. Other grabs & pulverizer shells use NM400 wear steel.
Q: Warranty repair rule for cracked Hardox450 shell plates?
A: Free component replacement for original crack within 12 months. Reimburse 200 RMB welding cost for weld crack within 6 months. Welding guidance offered, all freight borne by buyer. Cracks from overload, self-modification & impact excluded.
Q: Can eagle shear cut concrete & rock? Will illegal operation void warranty?
A: Only exposed rebar can be cut. Solid concrete & rock are prohibited to avoid fast blade wear. Steel rails & pressure vessels cannot be cut. Blade & shell damage from illegal operation fully void warranty. Use pulverizer or breaker for rock demolition.
Q: How to choose rotating vs fixed JS280RT / JS450RT? Are warranty terms identical?
A: Rotating model for indoor dismantling, fixed for open scrap yard with lower cost. Both Hardox450 shell & alloy steel blades with identical warranty. Rotating version 600–800kg heavier, slewing bearing 12-month warranty.
Q: Will warranty be shortened under 24h three-shift operation?
A: Full 12-month warranty for 8-hour single shift. Daily work over 8 hours halves warranty. Custom thickened Hardox jaws recommended for non-stop work, lubricate every 4 hours.
Q: Can the shear work underwater? Will silt rust be covered?
A: Long underwater use not recommended. Full cleaning & greasing required after underwater work. Rust & jamming from poor maintenance excluded. Anti-corrosion custom model available.
Q: Can faults from improper installation be claimed?
A: New excavators fit directly, refit kits supplied for old machines. Motor & cylinder damage from self-modified oil circuit excluded. Standard installation takes 2–3 hours.
Q: Will insufficient lubrication void warranty?
A: Grease every 4 hours under heavy load, full lubrication after long idle. Bearing & pin damage from lack of grease excluded.
Q: Anti-freeze steps for cold weather? Will frost damage be covered?
A: 5–10 mins no-load warm-up below 0℃, low-temperature oil below -10℃. Cover machine outdoors. Freeze crack from poor maintenance excluded.
Q: Can rust from outdoor rain storage be claimed?
A: Anti-rust coating applied before delivery. Rust from uncovered rain storage excluded.
Q: Standard idle storage steps?
A: Clean slag, coat Hardox shell with anti-rust oil, retract cylinders, wrap waterproof film indoors. Outdoor rust damage excluded.
Q: Which leakage & slow movement faults are covered?
A: Factory valve & cylinder defects covered for 12 months. Damage from self-adjusted pressure & dirty oil excluded, spare parts shipped within 8 hours.
Q: Exemption for slewing bearing & motor 12-month warranty?
A: Tooth breakage from insufficient grease excluded; motor shaft breakage from impact & self-tuning not covered.
Q: Freight & overseas spare parts lead time?
A: Free warranty parts, all freight & tariff borne by buyer. Overseas warehouse delivery 3–7 days, sea 20–40 days, air for emergency 7–15 days.
Q: Can JS280RT & JS450RT be customized? Same material?
A: Custom jaw size & hydraulic parameters available, extended alloy blades optional. Custom frames still Hardox450, production after 3D drawing confirmation, 7–15 days lead time.
Q: Export order process & payment terms?
A: MOQ 1 unit, bulk discount over 10 sets. T/T, L/C, Western Union accepted, 30% deposit before production. Process: confirm model → issue PI → inspection → shipment.
Q: Does export document include Hardox certificate?
A: Full docs including invoice, B/L, CO, RCEP, CE, SSAB Hardox certificate & factory inspection report for global customs.
Q: Will sea transit rust be covered?
A: Full anti-rust packing with desiccants. Rust from post-delivery outdoor storage excluded.
Q: Full warranty claim process?
A: 1. Provide serial number, fault video & hour record; 2. Judge factory or man-made damage; 3. Free spare parts & video guide for eligible claims; 4. 200 RMB welding reimbursement within 6 months; 5. Cost-price consumables offer.
Q: Does mentioning Sany CAT mean official cooperation?
A: Brands only show JS280RT/JS450RT compatibility, no authorization or endorsement, no trademark infringement.
