1. Power‑off the press for safety, clean ink & paper dust from numbering‑machine unit.
2. Loosen the set screw, remove old left / right dialer. Clean shaft seat from dirt.
3. Do NOT mix‑up left‑right parts. Fit L / R dialer onto corresponding shaft position.
4. Tighten set screw properly; avoid over‑tightening to prevent thread damage.
5. Manually turn press to check engagement between dialer and ratchet gear. Ensure no jamming or slipping.
6. Dry‑run test several cycles to verify correct number‑jumping function before formal printing.

Trouble: Failed number jump usually caused by reversed L/R installation, loose set screw or worn ratchet gear.

Compatible Printing Press List

‑ Heidelberg GTO‑46 / GTO‑52 ‑ Heidelberg Quickmaster QM46, QM52 ‑ Heidelberg PM46, PM52

Note: Only for GTO series numbering‑machine assembly. Not compatible for SM52, SM74, Komori, Roland and other press models.

Real‑shot & Package Description

‑ Photo1: Full set left+right dialer main view ‑ Photo2: Side‑by‑side comparison of left & right dialer ‑ Photo3: Mounting hole & set‑screw close‑up ‑ Photo4: Working tooth surface detail ‑ Photo5: Mock‑up assembled on GTO numbering unit ‑ Photo6: Retail paper box package (2 pcs / set)

FAQ

1. MOQ: 1 pc available; standard package 2 pcs/set (Left+Right). Single‑side piece can be ordered separately.
2. Lead‑time: 3 working days for stock items; 7‑10 working days for custom machined parts.
3. Customization: Custom reproduction supported with sample or drawing; standard stock item cannot modify dimension.
4. Shipping: DHL/FedEx/TNT/UPS, air & sea freight available. Non‑hazardous metal spare‑part.
5. Important: Left and right dialer cannot be interchanged, wrong assembly leads to number‑jumping failure.
6. Warranty: 6‑month warranty under normal operation; damage caused by violent installation is excluded.
7. Storage: Cool & dry environment, anti‑rust. Unopened shelf‑life: 24 months.

Competitor Comparison

表格

Customer Cases & Testimonials

‑ Case 1: Domestic printing‑press repair service provider, spare‑part replacement for Heidelberg GTO52 form & ticket printing press, monthly purchase 15‑25 sets, reduce unexpected downtime. ‑ Case 2: Southeast‑Asia form printing plant, for GTO‑46 serial‑number printing, long‑term repeat purchase.

“Left‑right dialers are well‑matched for Heidelberg GTO52 numbering unit, jump‑number action works stable.” “Hardened metal material, less wear‑out, convenient for press‑shop maintenance.”

Company profile

Founded in 2002, Guangzhou Print Area Trading Co., Ltd is an exporter of Printing Materials in China. We own our factory in Guangzhou with current factory premises area 3000 square meters and 40 tons monthly output of offset printing inks and also production of other printing materials.

Our products enjoy a high reputation in domestic market for over 16 years. Some of our offset printing ink clients include McDonald(China), Pizza Hut(China), KFC(China) and Singapore publishing house. We are now also sell to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East.

Our company is in pursuit of the tenet of "to survive on the basis of quality and establish trademark on credit". Sincerely welcome customers at home and aboard to come.